Waterway 2 Speed 4.5HP 230V Spa Pump | 3421821-1A C9410 The Pentair Lid O-Ring #2-357

The Pentair Lid O-Ring #2-357 (357255Z) is the OEM replacement strainer lid seal for Pentair SuperFlo

The Pentair Manifold Kit (474972) is the OEM replacement manifold service kit for the MasterTemp 125 pool and spa heater

see treatment table below

and apply a silicone-based lubricant before reseating it to ensure a proper seal and easier future removal

Waterway 2 Speed 4.5HP 230V Spa Pump | 3421821-1A C9410 The Pentair Lid O-Ring #2-357Features and Benefits: Executive wet end designed specifically for 48 frame motors Large 6 " diameter wet end for higher head pressure and energy efficiency Thermally protected to extend life expectancy of motor Highly versatile wet end can be rotated every 90 deg Silicone carbide seals, viton bellows, 316SS casing, corrosion resistance against chlorine, bromine & salt