3/8" Copper tube size, quick connect coupling, hold up to 250 psi, 1 piece, no parts to assemble or lose, quick connect design allows quick & easy connections without the use of installation tools, great for new installations or plumbing repair projects for PEX, copper, & CPVC pipe, just cut pipe & push PEX, copper or CPVC tubing into fitting end until tubing seats at stop, can be disconnected by pulling back on ring & releasing pipe, code approved for behind wall without access & direct in ground burial installations, NSF-14, NSF-61, CSA/ASTM & UPC code listed & approved, excellent replacement for qest & flare it type fittings.
WARNING: This product can expose you to chemicals including Bisphenol A, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov