Fill your light duty water service needs with these economical valves. They’re NSF certified for use with drinking water and can be used with Schedule 80 fittings and pipe. Each is a one-piece sealed unit requiring no adjustments. O-ring is EPDM, seats are PTFE/HDPE (high-density polyethylene), and tee handle is polypropylene. PVC valves have a PVC body, ball, and stem.