Astral Pool Terra & Cel Filter Buna-N O-Ring (4404210302) stenner A lid with clamp ring

A lid with clamp ring is useful because it helps secure the filter tank

this filter cartridge helps support cleaner water and more dependable everyday filtration results

internal alignment

The Waterway 550-4407 Crystal Water tank body is designed for compatible filter applications and comes in gray with the label included

or damaged and the cleaner remains otherwise serviceable

Astral Pool Terra & Cel Filter Buna-N O-Ring (4404210302) stenner A lid with clamp ringThe Astral Pool Terra and Cel filter O ring is designed for compatible filter applications where a Buna N seal is needed at a critical connection point. An O ring like this is useful because it helps maintain leak resistance between assembled components, supporting cleaner operation and a more dependable filter body connection. This replacement is especially useful when the original seal is flattened, brittle, stretched, or no longer holding