Copper Elbow Fittings: Complete B2B Sourcing Guide for Southeast Asian Exporters

Material Properties, Joining Methods, and Market Opportunities on Alibaba.com

Key Market Insights

• Copper tube fittings market projected to grow from USD 4.8B (2025) to USD 7.9B (2034) at 5.6% CAGR ^[1]
• Elbow joints represent the dominant fitting type in HVAC and plumbing applications ^[1]
• Press-fit installation methods showing fastest growth due to labor efficiency ^[1]
• Asia-Pacific region dominates global copper fittings production and consumption ^[1]
• Building construction and refrigeration sectors drive 60%+ of demand ^[2]

Understanding Copper Elbow Fittings: Configuration Basics

Copper elbow fittings are essential components in piping systems, enabling directional changes while maintaining system integrity. For Southeast Asian manufacturers considering selling on Alibaba.com, understanding the technical specifications and market positioning of copper elbow configurations is critical for success in the global B2B marketplace.

Elbow fittings are categorized primarily by angle (90°, 45°, 22.5°), material grade (Type K, L, M copper), and connection method (sweat/solder, press-fit, threaded). The 90 degree elbow remains the most widely used configuration, accounting for approximately 65-70% of elbow fitting demand in residential and commercial applications ^[1].

Market Size Context: The global copper tube fittings market is valued at USD 4.8 billion in 2025, with elbow joints representing the largest product segment. This presents significant opportunity for Southeast Asian exporters on Alibaba.com to capture market share in this growing category ^[1].

When configuring product listings for alibaba.com international buyers, manufacturers should clearly specify:

• Material composition: C12200 (DHP copper) is the industry standard for plumbing and HVAC applications
• Wall thickness: Type K (thickest), Type L (medium), Type M (thinnest) - each suited for different pressure ratings
• Angle specification: 90°, 45°, or custom angles
• Size range: From 1/4" to 4" nominal pipe size
• Connection type: Sweat, press-fit, threaded, or flare
• Certifications: NSF, UPC, WRAS, or regional equivalents

This level of detail helps buyers on Alibaba.com quickly assess whether your products meet their project requirements.

Copper Material Properties: Why Copper for Elbow Applications?

Copper has been the preferred material for plumbing and HVAC fittings for over a century, and for good reason. Understanding the material properties helps Southeast Asian exporters articulate value propositions to international buyers on Alibaba.com.

Thermal Conductivity: Copper's exceptional thermal conductivity (approximately 400 W/m·K) makes it ideal for HVAC and refrigeration applications where heat transfer efficiency is critical. This property allows copper elbows to dissipate heat evenly, reducing thermal stress at connection points ^[3].

Corrosion Resistance: Copper naturally forms a protective oxide layer that resists corrosion from water, refrigerants, and most chemicals. This translates to longer service life - properly installed copper fittings can last 50+ years in residential plumbing applications ^[3].

Flexibility and Workability: Copper's ductility allows it to be formed into precise elbow angles without cracking or weakening. This manufacturing advantage enables consistent quality across production batches - a key consideration for B2B buyers placing large orders through alibaba.com supplier networks.

Antimicrobial Properties: Copper's natural antimicrobial characteristics (oligodynamic effect) provide an additional benefit in potable water applications, inhibiting bacterial growth within the piping system. This feature is increasingly valued in healthcare and food service facility specifications.

Pressure and Temperature Ratings: Copper elbows typically handle working pressures up to 700 PSI and temperatures from -100°F to 400°F (-73°C to 204°C), making them suitable for both cold water distribution and hot water/heating systems ^[3].

Technical Specification Reference: Type L copper (most common for commercial plumbing) has a tensile strength of 315 MPa minimum and elongation of 45% minimum, providing excellent balance between strength and workability for elbow manufacturing ^[3].

Bending Radius and Flow Efficiency Considerations

The bending radius of copper elbows directly impacts fluid dynamics and system efficiency. This technical consideration is often overlooked but significantly affects long-term performance - a key differentiator when positioning products on Alibaba.com.

Standard vs. Long Radius Elbows:

• Standard radius (1D): Centerline radius equals nominal pipe diameter. Most common for general plumbing due to compact footprint.
• Long radius (1.5D): Centerline radius is 1.5x nominal pipe diameter. Reduces pressure drop and turbulence, preferred for HVAC refrigerant lines and high-flow applications.

For buyers sourcing on alibaba b2b platforms, understanding this distinction helps match products to appropriate applications. HVAC contractors typically specify long radius elbows for refrigerant lines to minimize pressure loss, while plumbers may prefer standard radius for space-constrained residential installations.

Elbow Radius Comparison: Application Guidelines

Elbow Type	Centerline Radius	Pressure Drop	Best Applications	Cost Premium
Standard Radius (1D)	1x Pipe Diameter	Moderate	Residential plumbing, space-constrained installations	Baseline
Long Radius (1.5D)	1.5x Pipe Diameter	Low (30-40% less)	HVAC refrigerant lines, high-flow systems	+15-25%
Short Radius	0.5x Pipe Diameter	High	Limited use, specific industrial applications	-10%
Custom Radius	As specified	Variable	Specialized engineering projects	+50-100%

Source: Industry technical specifications and manufacturer data ^[3]

Flow Efficiency Impact: Poor elbow selection can increase system pressure drop by 20-40%, requiring larger pumps or compressors and increasing energy consumption. For commercial buyers on Alibaba.com, this translates to significant operational cost differences over the system lifecycle.

Manufacturers should consider offering both standard and long radius options to capture different market segments. The premium for long radius elbows is often justified by energy savings in HVAC applications - a compelling value proposition for alibaba.com seller listings targeting energy-conscious buyers.

Joining Methods for Copper Elbows: Technical Comparison

The connection method is one of the most critical configuration decisions for copper elbow fittings. Each joining method has distinct advantages, cost implications, and skill requirements. Understanding these differences helps Southeast Asian exporters position products appropriately for different buyer segments on Alibaba.com.

1. Sweat/Solder Connection (Traditional)

The most established method, requiring flux application, heating with torch, and solder capillary action. Advantages include proven reliability (100+ year track record), lower fitting cost, and universal contractor familiarity. Disadvantages include fire risk during installation, skill dependency, and longer installation time.

2. Press-Fit Connection (Growing Segment)

Mechanical connection using specialized pressing tools. Fastest growing segment due to labor efficiency - installation is 3-5x faster than soldering. No open flame required (important for occupied buildings). Higher fitting cost but lower total installed cost in high-labor markets ^[1].

3. Threaded Connection

Traditional method for larger diameter pipes (2" and above). Allows disassembly for maintenance. Requires pipe threading equipment and sealant tape/compound. Still common in industrial and commercial applications but declining in residential.

4. Flare Connection

Primarily used for refrigeration and gas lines. Creates metal-to-metal seal through flaring tool. Excellent for vibration-prone applications. Requires specialized flaring equipment and skilled labor.

For sell on alibaba.com strategy, manufacturers should consider which connection methods align with their target markets. Press-fit is gaining traction in North America and Europe due to labor costs and safety regulations, while soldered connections remain dominant in Asia-Pacific and developing markets.

Joining Methods Comparison: Cost, Skills, and Applications

Method	Fitting Cost	Installation Speed	Skill Required	Equipment Cost	Best For
Sweat/Solder	Low	Slow	Medium	Low (torch)	Residential plumbing, general HVAC
Press-Fit	High (+40-60%)	Very Fast	Low	High (pressing tool)	Commercial, occupied buildings, labor-expensive markets
Threaded	Medium	Medium	Medium	Medium (threader)	Large diameter, industrial, maintenance access needed
Flare	Medium	Slow	High	Medium (flaring tool)	Refrigeration, gas lines, vibration applications

Cost comparisons are relative; actual prices vary by region and supplier. Press-fit tool investment is offset by labor savings in high-volume installations ^[1][3].

Real Market Feedback: What Buyers Are Saying

Understanding real user experiences helps manufacturers identify quality expectations and common pain points. We analyzed verified buyer reviews from major B2C platforms to extract insights relevant to B2B sourcing decisions on Alibaba.com.

Quality Expectations: Professional contractors consistently emphasize wall thickness and finish quality as primary purchase criteria. Cleanly finished ends reduce preparation time and improve solder flow - a detail that matters for high-volume installers.

Amazon Verified Buyer• Amazon.com

These copper elbows have very cleanly finished ends compared to some other elbows purchased at the big box store. The walls of these elbows also appear thicker. ^[4]

5-star review, EZ-FLUID copper elbow fittings, verified purchase

Professional Plumber• Amazon.com

Professional plumber here. These Nibco elbows are what I use on all commercial jobs. Perfect fit, no leaks after pressure testing. ^[5]

5-star review, Nibco 45-degree elbow, professional contractor

HVAC Contractor• Amazon.com

Perfect for my HVAC refrigerant line installation. Copper walls are thick, no leaks after pressure testing at 400 PSI. ^[6]

5-star review, 90-degree copper elbow, HVAC application

Amazon Verified Buyer• Amazon.com

Good quality at a great price. Delivered quickly. ^[4]

5-star review, EZ-FLUID copper fittings, verified purchase

Amazon Verified Buyer• Amazon.com

Two of them were a bit smooshed so they would not strap on to the pipe ends but I only needed half of them for the job. ^[4]

4-star review, packaging damage concern, EZ-FLUID product

Key Insights from User Feedback:

1. Packaging Quality Matters: Even high-quality fittings can receive negative reviews if packaging allows damage during shipping. For alibaba.com seller exports, robust packaging is essential for maintaining reputation.

2. Professional Endorsement Drives Sales: Reviews from licensed contractors carry significant weight. Manufacturers should consider certification programs or professional partnerships to build credibility.

3. Consistency is Critical: B2B buyers need batch-to-batch consistency. One negative experience with dimensional accuracy can lose a long-term customer.

4. Application-Specific Performance: HVAC contractors emphasize pressure testing results, while plumbers focus on solder flow characteristics. Product listings on Alibaba.com should highlight application-specific testing data.

Common Applications: HVAC, Plumbing, and Beyond

Copper elbow fittings serve diverse applications across multiple industries. Understanding these use cases helps Southeast Asian manufacturers target the right buyer segments when selling on Alibaba.com.

HVAC Systems (Largest Application Segment)

Copper elbows are essential in heating, ventilation, and air conditioning systems for refrigerant line routing. The HVAC sector accounts for approximately 35-40% of copper fitting demand ^[1]. Key requirements include:

• Pressure ratings suitable for R-410A and emerging low-GWP refrigerants
• Clean, oil-free interior surfaces to prevent system contamination
• Compatibility with both soldered and brazed connections
• Long radius elbows preferred for refrigerant lines to minimize pressure drop

Plumbing Systems (Second Largest Segment)

Residential and commercial plumbing represents 30-35% of copper fitting consumption ^[2]. Requirements vary by application:

• Potable water: NSF/ANSI 61 certification required in North America
• Hot water systems: Temperature ratings up to 180°F (82°C)
• Fire sprinkler systems: Specific pressure and flow requirements
• Medical gas systems: Ultra-clean, oxygen-compatible fittings

Refrigeration and Cold Storage

Commercial refrigeration and cold storage facilities use copper elbows extensively for ammonia and Freon systems. Low-temperature performance (-40°F to -100°F) and vibration resistance are critical specifications.

Industrial Applications

Process piping, compressed air systems, and specialty gas distribution represent smaller but higher-value segments. These applications often require custom specifications and certifications, commanding premium pricing on alibaba b2b platforms.

Emerging Applications:

• Solar thermal systems: Growing demand for high-temperature copper fittings
• Geothermal heat pumps: Corrosion-resistant fittings for ground-loop systems
• Hydrogen fuel systems: Specialized copper alloys for hydrogen compatibility

Manufacturers targeting these emerging segments can differentiate their Alibaba.com listings by highlighting relevant certifications and testing data.

Market Opportunity: Building construction and refrigeration sectors together drive over 60% of copper pipe and tube demand, with elbow fittings representing the largest fitting type by volume ^[2]. This concentration provides clear targeting opportunities for Southeast Asian exporters on Alibaba.com.

Configuration Comparison: Making the Right Choice

There is no single "best" configuration for copper elbow fittings - the optimal choice depends on target market, buyer segment, and competitive positioning. This section provides an objective comparison to help Southeast Asian manufacturers make informed decisions when configuring products for Alibaba.com listings.

The following table compares common configuration options across key decision factors:

Copper Elbow Configuration Comparison: Pros, Cons, and Target Markets

Configuration	Advantages	Limitations	Best For	Price Positioning
90° Standard Radius, Soldered	Most common, lowest cost, universal compatibility	Slower installation, fire risk during install	Residential plumbing, budget-conscious buyers	Economy/Mid-range
90° Long Radius, Soldered	Better flow efficiency, HVAC preferred	Larger footprint, slightly higher cost	HVAC refrigerant lines, commercial plumbing	Mid-range/Premium
90° Press-Fit	Fastest installation, no flame, consistent quality	Higher fitting cost, tool investment required	Commercial projects, labor-expensive markets	Premium
45° Elbow, Soldered	Gentler turns, lower pressure drop than 90°	Requires more fittings for same direction change	Complex routing, aesthetic installations	Mid-range
Custom Angle, Any Method	Exact fit for specialized applications	Higher cost, longer lead time, MOQ requirements	Industrial projects, custom engineering	Premium/Custom
Type K Copper (Thick Wall)	Highest pressure rating, longest life	Higher material cost, heavier	Underground, high-pressure, critical applications	Premium
Type L Copper (Medium Wall)	Balanced cost/performance, most common	Not suitable for highest pressure applications	General commercial plumbing, HVAC	Mid-range (Volume Leader)
Type M Copper (Thin Wall)	Lowest cost, lightest weight	Lower pressure rating, shorter life	Residential, low-pressure applications	Economy

Price positioning is relative within the copper fittings category. Actual pricing varies by region, order volume, and supplier capabilities on Alibaba.com.

Strategic Recommendations for Southeast Asian Exporters:

1. Start with Type L, 90° Standard Radius, Soldered: This configuration represents 60-70% of market volume and provides the broadest buyer appeal on Alibaba.com. Master this before expanding into niche configurations.

2. Add Press-Fit Options for Premium Markets: North American and European buyers increasingly specify press-fit for commercial projects. The higher margin can justify tooling investment if you have distribution partners in these regions.

3. Consider 45° Elbows as Complementary SKUs: Many buyers purchase 90° and 45° elbows together. Offering both increases average order value and positions you as a full-line supplier on alibaba.com supplier searches.

4. Certifications Are Non-Negotiable for Premium Segments: NSF, UPC, WRAS, or equivalent certifications are required for plumbing applications in most developed markets. Factor certification costs into your pricing strategy.

Market Trends and Buyer Considerations on Alibaba.com

Understanding market dynamics helps Southeast Asian manufacturers position products effectively on Alibaba.com. The copper fittings industry is experiencing several significant trends that create both opportunities and challenges for exporters.

Growth Drivers:

• Infrastructure Investment: Global infrastructure spending, particularly in Asia-Pacific and Middle East, drives demand for plumbing and HVAC components ^[2]
• Energy Efficiency Regulations: Stricter building codes favor copper's thermal performance over alternative materials
• Labor Cost Increases: Rising installation labor costs in developed markets accelerate press-fit adoption
• Replacement Market: Aging infrastructure in North America and Europe creates steady replacement demand

Market Challenges:

• Raw Material Price Volatility: Copper prices fluctuate with global commodity markets, affecting margin predictability
• Alternative Materials: PEX and CPVC compete in residential plumbing segments (though copper maintains dominance in commercial)
• Trade Barriers: Tariffs and local content requirements in some markets affect sourcing decisions

What B2B Buyers Look for on Alibaba.com:

Based on industry analysis and buyer behavior data, international buyers evaluating copper elbow suppliers on Alibaba.com typically prioritize:

1. Certification Documentation: Buyers expect clear visibility of relevant certifications (NSF, WRAS, ISO 9001, etc.) in product listings. Missing certifications often result in immediate disqualification.

2. Sample Availability: B2B buyers frequently request samples before placing large orders. Suppliers who offer sample programs convert at higher rates.

3. MOQ Flexibility: While large buyers seek volume pricing, many distributors start with smaller trial orders. Flexible MOQ options expand your addressable market on alibaba b2b.

4. Lead Time Transparency: Clear production and shipping timelines help buyers plan projects. Suppliers who consistently meet quoted lead times build repeat business.

5. Technical Support: Buyers appreciate suppliers who can answer technical questions about specifications, compatibility, and applications. This differentiates commodity sellers from value-added partners.

Asia-Pacific Market Dominance: The Asia-Pacific region accounts for over 45% of global copper fittings production and consumption, with China, India, and Southeast Asia as major manufacturing hubs ^[1]. Southeast Asian exporters benefit from regional supply chain integration and competitive labor costs when selling on Alibaba.com.

Action Guide: Configuration Selection for Different Business Profiles

Not every configuration suits every exporter. The following decision framework helps Southeast Asian manufacturers select the right product mix based on their business profile and target markets when selling on Alibaba.com.

For New Exporters (First Time on Alibaba.com):

• Recommended Configuration: Type L, 90° standard radius, soldered connection
• Rationale: Largest market segment, lowest complexity, broadest buyer appeal
• Certification Priority: ISO 9001 (quality management) + one regional plumbing certification (NSF for North America or WRAS for Europe)
• MOQ Strategy: Offer tiered pricing with accessible entry-level MOQ (500-1000 pieces) to attract trial orders
• Listing Optimization: Emphasize quality control processes, certification status, and sample availability in Alibaba.com product descriptions

For Established Manufacturers (Expanding Product Line):

• Recommended Configuration: Add Type L 45° elbows + Type K 90° elbows + press-fit options
• Rationale: Complementary SKUs increase average order value; press-fit captures premium segment
• Certification Priority: Add application-specific certifications (HVAC, medical gas, fire sprinkler as relevant)
• MOQ Strategy: Maintain flexible MOQ for standard items; higher MOQ for custom/press-fit configurations
• Listing Optimization: Create separate listings for different configurations to capture long-tail search traffic on alibaba.com supplier searches

For Premium/Custom Specialists:

• Recommended Configuration: Custom angles, Type K thick-wall, specialized alloys, flare connections
• Rationale: Higher margins, less price competition, loyal customer base
• Certification Priority: Industry-specific certifications (ASME, PED, etc.) based on target applications
• MOQ Strategy: Higher MOQ justified by customization; offer engineering support as value-add
• Listing Optimization: Highlight engineering capabilities, custom manufacturing experience, and technical support in Alibaba.com company profile

For High-Volume Commodity Suppliers:

• Recommended Configuration: Type M and Type L, 90° and 45°, soldered only
• Rationale: Maximize production efficiency, compete on price and delivery speed
• Certification Priority: Minimum required certifications for target markets; focus on production capacity
• MOQ Strategy: High MOQ with aggressive volume pricing; target distributors and large contractors
• Listing Optimization: Emphasize production capacity, inventory availability, and fast shipping on Alibaba.com

Configuration Selection Matrix: Match Your Business Profile to Product Strategy

Business Profile	Priority Configurations	Target Buyer Segment	Key Differentiator	Alibaba.com Listing Focus
New Exporter	Type L 90° soldered	Small distributors, trial buyers	Certification + sample program	Quality assurance, certifications
Established Manufacturer	Type L/K + 45° + press-fit	Mid-size contractors, distributors	Product range + technical support	Full-line supplier capability
Premium Specialist	Custom angles, Type K, flare	Engineering firms, specialized contractors	Engineering expertise + customization	Technical capabilities, case studies
High-Volume Supplier	Type M/L 90°/45° soldered	Large distributors, price-sensitive buyers	Price + delivery speed + inventory	Production capacity, stock availability

This matrix provides general guidance. Actual strategy should consider your specific capabilities, target markets, and competitive landscape on Alibaba.com.

Why Southeast Asian Exporters Choose Alibaba.com for Copper Fittings

For Southeast Asian manufacturers of copper elbow fittings, Alibaba.com offers distinct advantages over traditional export channels and alternative B2B platforms.

Global Buyer Reach:

Alibaba.com connects suppliers with buyers from 190+ countries, providing access to markets that would be prohibitively expensive to reach through traditional trade shows or direct sales. For copper fittings exporters, this means exposure to HVAC contractors in North America, plumbing distributors in Europe, and infrastructure developers in the Middle East - all through a single platform.

Industry-Specific Traffic:

Buyers on Alibaba.com come with purchase intent. Unlike general marketing channels where you must educate prospects about your existence, Alibaba.com visitors are actively searching for suppliers. The platform's category structure and search algorithm match your copper elbow listings with relevant buyer queries like "copper pipe fittings," "90 degree elbow," and "HVAC copper fittings."

Trust and Verification:

Alibaba.com's verification systems (Verified Supplier, Trade Assurance, On-site Inspection) provide third-party credibility that independent websites cannot match. For international buyers evaluating Southeast Asian suppliers, these verification badges reduce perceived risk and accelerate purchasing decisions.

Integrated Trade Services:

Beyond product listings, Alibaba.com offers logistics coordination, payment protection, and dispute resolution - reducing the operational complexity of cross-border B2B transactions. This is particularly valuable for small and medium exporters who lack dedicated international trade departments.

Data-Driven Insights:

Alibaba.com provides suppliers with data on buyer behavior, search trends, and competitor performance. This intelligence helps manufacturers refine their product configurations, pricing, and marketing strategies based on actual market demand rather than assumptions.

Competitive Positioning:

Compared to traditional export channels (trade shows, agent networks), Alibaba.com offers:

Channel	Setup Cost	Reach	Lead Time	Ongoing Cost
Trade Shows	High ($10K-50K per event)	Limited (event attendees)	Months to results	Per-event
Agent Networks	Medium (commission 5-15%)	Variable	6-12 months to establish	Ongoing commission
Alibaba.com	Low-Medium (membership + P4P)	Global (190+ countries)	Weeks to first inquiry	Predictable subscription
Direct Website	Medium-High (build + traffic)	Limited (SEO dependent)	6-18 months	Ongoing marketing

For Southeast Asian copper fittings manufacturers, Alibaba.com provides the fastest path to international market entry with the most predictable cost structure.

Conclusion: Making Informed Configuration Decisions

Copper elbow fittings represent a significant opportunity for Southeast Asian exporters on Alibaba.com, but success requires thoughtful configuration decisions aligned with your capabilities and target markets.

Key Takeaways:

1. No Universal Best Configuration: The optimal product mix depends on your business profile, target markets, and competitive positioning. Type L 90° soldered elbows offer the broadest appeal, but niche configurations (press-fit, custom angles, Type K) can command premium margins.

2. Material Properties Matter: Copper's thermal conductivity, corrosion resistance, and antimicrobial properties provide genuine value propositions for HVAC and plumbing applications. Communicate these benefits clearly in your Alibaba.com listings.

3. Joining Method Trends: Press-fit connections are growing fastest due to labor efficiency, but soldered connections remain dominant globally. Consider offering both to capture different market segments.

4. Certifications Are Essential: International buyers expect relevant certifications (NSF, WRAS, ISO 9001). Factor certification costs and timelines into your export strategy.

5. Packaging Quality Impacts Reputation: User feedback consistently highlights packaging as a make-or-break factor for product reviews. Invest in robust packaging to protect your reputation on alibaba.com supplier searches.

6. Application-Specific Positioning: HVAC buyers prioritize pressure ratings and flow efficiency; plumbing buyers focus on code compliance and solder quality. Tailor your messaging to each segment.

Next Steps for Southeast Asian Exporters:

1. Audit Your Current Capabilities: Assess your production equipment, certification status, and quality control processes against the configuration requirements outlined in this guide.

2. Research Your Target Markets: Use Alibaba.com data tools to identify which configurations are most searched in your target regions. Align your product mix with actual demand.

3. Start Focused, Then Expand: Begin with 1-2 core configurations that match your strengths. Add complementary SKUs as you gain market traction and buyer feedback.

4. Invest in Listing Quality: High-quality photos, detailed specifications, certification documentation, and clear MOQ/pricing information significantly improve conversion rates on Alibaba.com.

5. Leverage Trade Assurance: Offer Trade Assurance payment protection to build buyer confidence, especially for first-time international customers.

The copper fittings market is projected to grow from USD 4.8 billion (2025) to USD 7.9 billion (2034) at 5.6% CAGR ^[1]. Southeast Asian manufacturers who make informed configuration decisions and leverage Alibaba.com effectively are well-positioned to capture their share of this growth.

Ready to start selling on Alibaba.com? Explore our supplier resources and connect with industry experts who can help you optimize your product listings for maximum visibility and conversion.

References

1. Copper Tube Fittings Market Outlook 2026-2034 - Intel Market Research
2. Copper Pipes and Tubes Market Size & Forecast 2025-2030 - Mordor Intelligence
3. Copper Pipework Explained: Complete Guide for HVAC & Plumbing Systems 2025 - SK Metals
4. EZ-FLUID 1/2" Copper 90 Degree Elbow Fittings - Customer Reviews - Amazon.com
5. Nibco 45 Degree Elbow Copper Fitting - Customer Reviews - Amazon.com
6. Copper 90 Degree Elbow Fitting - Customer Reviews - Amazon.com