![Brass BSP Female Thread + Copper Welding Pipe Fitting Straight Union Nut Socket Connector for Air Conditioning Refrigeration-1I4-12mm - Amazon.com Brass BSP Female Thread + Copper Welding Pipe Fitting Straight Union Nut Socket Connector for Air Conditioning Refrigeration-1I4-12mm - Amazon.com](https://m.media-amazon.com/images/I/51XQpRHwhVL.jpg)
Brass BSP Female Thread + Copper Welding Pipe Fitting Straight Union Nut Socket Connector for Air Conditioning Refrigeration-1I4-12mm - Amazon.com
![Threaded Copper Pipe Price of Refrigeration Copper Tube and Insulated Copper Tube Is Cheaper - China Copper Insulation Pipe, Insulation Tube | Made-in-China.com Threaded Copper Pipe Price of Refrigeration Copper Tube and Insulated Copper Tube Is Cheaper - China Copper Insulation Pipe, Insulation Tube | Made-in-China.com](https://image.made-in-china.com/202f0j00vpFYnNJgfEbz/Threaded-Copper-Pipe-Price-of-Refrigeration-Copper-Tube-and-Insulated-Copper-Tube-Is-Cheaper.webp)
Threaded Copper Pipe Price of Refrigeration Copper Tube and Insulated Copper Tube Is Cheaper - China Copper Insulation Pipe, Insulation Tube | Made-in-China.com
![Everytime I connect one of these female copper fittings to a threaded male piece, it leaks. It's not the solder but seems to be the threads? I've used Teflon paste, and not, Everytime I connect one of these female copper fittings to a threaded male piece, it leaks. It's not the solder but seems to be the threads? I've used Teflon paste, and not,](https://i.redd.it/xm1jdmwd2l981.jpg)
Everytime I connect one of these female copper fittings to a threaded male piece, it leaks. It's not the solder but seems to be the threads? I've used Teflon paste, and not,
![DMNI Copper Pipe Fitting Crimp Female Sweat Adapter Pressure Copper Fitting Plumbing Hose Threaded Adapter Sweat Solder Connection Pipe - Pack of 5 DMNI Copper Pipe Fitting Crimp Female Sweat Adapter Pressure Copper Fitting Plumbing Hose Threaded Adapter Sweat Solder Connection Pipe - Pack of 5](https://i5.walmartimages.com/asr/816d82fb-a87e-4632-9bcd-82fd6737a7c6.11b76d405e333212c750913d66cc6aff.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
DMNI Copper Pipe Fitting Crimp Female Sweat Adapter Pressure Copper Fitting Plumbing Hose Threaded Adapter Sweat Solder Connection Pipe - Pack of 5
![China Copper Fittings Manufacturers, Copper Pipe Distributors, Copper Pipe Manufacturers -NAFCO Valve-Ningbo Acro Fluid Control Co., Ltd. China Copper Fittings Manufacturers, Copper Pipe Distributors, Copper Pipe Manufacturers -NAFCO Valve-Ningbo Acro Fluid Control Co., Ltd.](https://www.acrofluid.com/uploads/14945797439563.jpg)