Pentair Diffuser | Challenger High Pressure Pump | 355270Z Pool Liner Insulation The Pentair Standpipe Assembly (152227)

The Pentair Standpipe Assembly (152227) is the OEM replacement pipe assembly for the Sand Dollar Aboveground Sand Filter Model SD60 and the Cristal-Flo II High-Rate Sand Filter with a 22-inch tank

The Pentair Low Profile Valve Lid Assembly with O-Ring (230045) is the OEM replacement lid assembly for Pentair Low Profile Actuator Valves used in in-floor pool cleaning and circulation systems

A failed or degraded O-ring in this position results in internal valve leakage or loss of flow control between the diverter and check valve sections — making this a direct-replacement service part when the valve develops a bypass or weep

Fits Jandy models:

allowing for tool-free disconnection during service

Pentair Diffuser | Challenger High Pressure Pump | 355270Z Pool Liner Insulation The Pentair Standpipe Assembly (152227)The Pentair Diffuser (355270Z) is the OEM replacement diffuser for the Challenger High Pressure inground pump, sized for the 11 2 HP Full Rated and 2 HP Up Rated configurations. The diffuser sits between the impeller and the volute, converting the high velocity water leaving the impeller into pressure. A cracked, worn, or incorrectly sized diffuser reduces hydraulic efficiency, disrupts flow through the pump, and can accelerate wear on the impeller.