Pentair Strainer Pot Black | Challenger High Flow Pump | 355300Z Mortar & Sealants A degraded or cracked O-ring

A degraded or cracked O-ring will allow water to leak past the valve seat

When replacing the seal plate

not an individual manifold body

holding tank

The tub O-ring seals the combustion chamber lid on MasterTemp and Max-E-Therm heaters

Pentair Strainer Pot Black | Challenger High Flow Pump | 355300Z Mortar & Sealants A degraded or cracked O-ringThe Pentair Strainer Pot (355300Z) is the OEM replacement strainer pot for the Pentair Challenger High Flow pump series. This is the Black version confirm the color of your existing strainer pot before ordering. What It Does The strainer pot houses the pump's debris basket, forming the sealed pre filtration chamber that protects the impeller from leaves, hair, and other debris. A cracked, warped, or leaking strainer pot allows air into the pump