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

maintaining a sealed chamber that allows the pump to prime and sustain suction during operation

reliable debris capture

Safety first — always release pressure before opening

Remove and store cover

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.