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METER STAR 1/4' (6.35mm) HVAC No-Weld Copper Pipe Connector – Double Flare Nut Coupler, Tool-Free Compression Fitting for AC Refrigerant Lines

Free shipping on orders over $29.99

$9.79

$ 4 .99 $4.99

In Stock

About this item

  • 【Premium All-Copper Construction】Crafted with 100% pure copper fittings and corrosion-resistant flare nuts, ensuring superior thermal conductivity, leak-proof performance, and long-term durability even under high-pressure HVAC systems.
  • 【Complete No-Weld Installation Kit】Includes 2 heavy-duty flare nuts + 1 pair of double-joint connectors—simply purchase copper tubes (sold separately) for a seamless, welding-free setup. Perfect for DIYers and professionals alike.
  • 【Universal 1/4"–3/4" Dual-Size Compatibility】Designed for 1/4"–3/4" diameter copper pipes, this coupler bridges or extends AC refrigerant lines effortlessly. Tighten with a standard wrench for instant, vibration-resistant connections.
  • 【Tool-Free, Time-Saving Solution】Skip welding and complex tools! The double-joint design allows quick one-to-two pipe splits or extensions, ideal for repairs, retrofits, or custom installations in residential/commercial HVAC systems.
  • 【Pro Tip for Fitment】Note: AC lines often use dual-sized tubes. Always measure your existing copper pipes and purchase 2 connector pairs (sold separately) matching both diameters for a secure, leak-free seal.



Product Description

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100% high quality pure copper fittings and Flare Nut

Includes 2 Flare Nuts, one pair of connectors, and direct purchase of copper tubes as required

Uses: The connection between two copper pipes, one to two, quick connection, no welding, can be tightened with a wrench. Air-conditioning copper pipe joints, 6-19MM double joints, intermediate joints, high-quality copper cores are sturdy and durable, and are not easily damaged when installed.

The joint is used to lengthen the copper tube, it can be used when bought back, no welding is required.

Warning: The air conditioning copper tube contains double tubes of different sizes. You need to purchase the corresponding 2 pairs of connectors according to the size of the air conditioner.

33

C. Brown
Reviewed in the United States on March 6, 2025
I bought 1/2" and 1/4" union connectors to fix a leak I discovered coming from the indoor unit of my mini split. After checking for the source of the leak, I traced it to the point where the refrigerant line set connect to the copper lines coming out of the indoor air-handler. As you can imagine after mounting these units it's a hassle and a pain to remove and repair due to the awkward location and cramped and limited space. To fix the problem I decided to use these connectors to shorten the lines and flare the ends making it easier to use a bender to make two 90 degree bends (less likely to kink) on the shorter lines and connect to the lines outside going to the condenser. The initial leak check was good and so far, the system is working great.
Juan Martinez
Reviewed in the United States on January 14, 2025
It was what expected
ernst.oberhauser
Reviewed in Germany on September 22, 2024
alles in Ordnung und schnell
Martin s.
Reviewed in Sweden on July 4, 2024
Hej! Fick den snabbt och passar bra!
Victorconka
Reviewed in Spain on November 18, 2024
Me ha ahorrado hacer una soldadura y hasta el momento la conexión es buena y sin fugas, tras casi 6 meses desde su instalación. El envío fue muy rápido y llego bien embalado.
jose velasco
Reviewed in the United States on May 6, 2023
Great for mini split lines
Phi
Reviewed in France on December 21, 2023
Pièce conforme à la demande et livraison ultra rapide. Pièce de très bonne qualité. Merci
Drew B Andrews
Reviewed in the United States on January 14, 2023
This is a standard SAE 45 degree flare fitting with SAE 1/2" threads. Threads have .75" external (major) diameter and 14 tpi.I wish the description would have mentioned some of this information. Seems like a decent product as long as you are not looking for something with BSPP threads.
Edilberto Alvarez
Reviewed in the United States on May 31, 2022
100 % exactly what it said , work perfectly
Lucchio
Reviewed in Italy on December 11, 2021
ok
Justin lewis
Reviewed in the United States on August 12, 2020
Worked perfect!! Couldn’t find one locally so ordered this and it was just what we needed. Had to replace a leaking compression fitting on a mini split system
Bill C.
Reviewed in the United States on June 7, 2020
Strong, solid connectors. Used when I replaced my central ac compressor. Wanted to be able to remove compressor easily in case there was a problem. Worked great on my 2 ton suction line. Use thread sealant.
Master P
Reviewed in the United States on October 21, 2019
No complaints. Worked as expected to extend a lone set for a mini split, I didn’t want to braze so this worked well.
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