Chemical & Corrosion Resistant PVC Construction. Maintenance-Free Sealed Unit. Valve & Adapter Kit. Schedule 80 Full-Port Design. High Impact Polypropylene Handle. EPDM O-rings. PTFE Floating Seat Design. Pressure Rated to 150 psi @ 73°F. EPDM Valves NSF® Certified for Potable Water use. Assembled with Silicone-Free, Water Soluble Lubricant. Spears® Manufacturing Company.