Pentair Diffuser | Challenger High Pressure Pump | 355270Z C7447 Keep this wrench with your

Keep this wrench with your filter equipment so it is on hand when needed for service

Remove and store cover

addressing those components during the same service visit avoids reopening the enclosure unnecessarily

For Cartridge Filters: Adjust spray nozzle to stream

While the pump is disassembled for seal service

Pentair Diffuser | Challenger High Pressure Pump | 355270Z C7447 Keep this wrench with yourThe 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.