Pentair Stainless Steel Strainer Basket 5F | Challenger High Flow Pump | 355901 Primers Traps debris in vac-mate basket

Traps debris in vac-mate basket before it reaches pump pot

A deteriorated or displaced diffuser O-ring reduces hydraulic efficiency and can allow air infiltration into the pump housing

If your current filter uses a 1

replace all 6 at the same time

Pentair Stainless Steel Strainer Basket 5F | Challenger High Flow Pump | 355901 Primers Traps debris in vac-mate basketThe Pentair Stainless Steel Strainer Basket (355901) is the OEM replacement strainer basket for the Challenger High Flow Pump in 5F configurations. The strainer basket sits inside the pump's strainer housing and intercepts debris leaves, hair, and other particulates before they reach the impeller. Keeping this basket in good condition maintains pump flow rate and protects the impeller from damage. Replace when the basket shows visible cracks,