You are Buying a brand New And Factory Sealed  Apollo 3/4 in. Brass PEX-B Barb x Male Pipe Thread Adapter Pro Pack (25-Pack) Model # APXMA3425JR....  lead free dezincification resistant (DZR) brass for superior reliability and strength Most economical piping system available, Compatible with PEX pipe. Meets UPC, IPC and cUPC standard. Can secured in place using copper crimps, stainless steel pinch clamps or stainless steel crimp sleeves. NSF listed. Barb x MNPT connection for PEX plumbing systems. Maximum working pressure of 200 psi and maximum temperature of 200 degree F......