BestPEX lead-free brass insert fittings are constructed of durable high quality brass. They meet cNSF-14g ASTM F877, F1807 and CSA B137.5 standards and are compatible with both copper crimp rings and stainless steel clamps. PEX/PB Adapter - 3/4" PEX x 3/4" PB Wiring.
Flair-It PEX/PB Adapter Size: 3/4" PEX x 3/4" PB Wiring Durable, high quality brass Quick and easy installation