LASCO 19-5027 Male Pipe Thread Adapter Compression Fitting with 1/2-Inch OD Tube and 1/2-Inch Male Pipe Thread, Nylon Nylon compression fitting with integral sleeve nut Use for hot or cold water 1/2-inch od tube x 1/2-inch male pipe adapter No need to disassemble fitting - just loosen the nut, insert tubing, then tighten Use on copper, PEX, poly and aluminum tubing