Mueller PVC Schedule 80 threaded union features: Heavy-duty white Schedule 80 PVC construction. Neoprene O-rings. Can be used with both Schedule 40 or Schedule 80 pipe. Threaded ends comply with ANSI B1.20.1 Solvent ends comply with ASTM D2466. Rated at 150 P.S.I. at 73 deg. F. Maximum temperature 150 deg. F. EPDM O-ring seal F.I.P. x F.I.P. Imported. White.