Pentair 271104 Diverter Gasket for Pool or Spa 1.5" Multiport Valve New Pentair 271104 Replacement Valve Gasket Diverter gasket replacement Fits Pentair HiFlow top and side mount pool/spa 1-1/2-inch multiport valves Also fits Pentair top mount clamp-on pool and spa multiport valves Pentair American Products Top Mount Screw-on Multiport Valves