No-Solder Connection
The flare nut design creates a secure, leak-proof connection without the need for soldering, saving time and effort on every job.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
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Why customers love it
Reliable Copper Connections Without Soldering
These copper pipe extension fittings with flare nuts provide a dependable, weld-free way to extend or join copper pipes in HVAC, refrigeration, and plumbing systems.
- Secure, leak-proof flare nut connection without soldering
- Premium solid copper for durability and corrosion resistance
- Compatible with 1/4 inch, 3/8 inch, and 1/2 inch copper pipes
- Rated for pressures up to 1.6 MPa (229 PSI)
- Operates from -20°C to 120°C for versatile use
- Ideal for HVAC, refrigeration, plumbing, and more
Why Choose These Copper Fittings
Built to Last
Premium solid copper construction delivers exceptional durability and corrosion resistance, ensuring long-lasting performance in demanding environments.
Handles Extreme Conditions
Rated for pressures up to 1.6 MPa (229 PSI) and temperatures from -20°C to 120°C, these fittings handle tough operating conditions with ease.
Versatile Compatibility
Compatible with 1/4 inch, 3/8 inch, and 1/2 inch copper pipes, these fittings offer flexibility for a wide range of HVAC, refrigeration, and plumbing applications.
Setup
Simple, Solder-Free Installation
No electrician, no wiring, no fuss.
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Prepare the Pipe
Slide the flare nut onto the copper pipe and prepare the pipe end for a flare connection.
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Tighten the Flare Nut
Tighten the flare nut securely onto the fitting to create a leak-proof, weld-free joint.
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Secure and Done
The connection is complete—no soldering or special tools required, ready for immediate use.
Specs
The details that matter
Built to last outdoors, season after season.
- Connector Size
- Size 1, Size 4, Size 8
- Material
- Solid copper
- Compatible Pipe Sizes
- 1/4 inch (6.35mm), 3/8 inch (9.53mm), 1/2 inch (12.7mm)
- Pressure Rating
- 1.6 MPa (229 PSI)
- Temperature Range
- -20°C to 120°C
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What pipe sizes are these fittings compatible with?
These fittings are compatible with 1/4 inch (6.35mm), 3/8 inch (9.53mm), and 1/2 inch (12.7mm) copper pipes, giving you flexibility across various system sizes.
How does the flare nut design improve installation?
The flare nut design creates a secure, leak-proof connection without soldering, making installation quicker and cleaner while reducing the risk of leaks.
What is the maximum pressure rating for these fittings?
These fittings are rated for pressures up to 1.6 MPa (229 PSI), ensuring dependable performance in high-pressure applications.
What temperature range can these fittings withstand?
These fittings operate across a wide temperature range from -20°C to 120°C, making them suitable for both cold and hot environments.
What applications are these fittings best suited for?
They are ideal for air conditioning lines, refrigeration equipment, shipboard piping, medical oxygen systems, fuel and gas lines, vacuum applications, and general plumbing.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.