Unique molded CPVC/stainless steel design with internal knurl and EPDM O-ring insures reliability and integrity. Large stainless steel hex for easy connection to IPS sized pipe and fittings. Meets/exceeds ASTM and ANSI standards. Pressure rated to 100 psi at 180 deg F. Made with EverTUFF® CPVC and Type 304 stainless steel.