Hayward Swimclear Filter Cartridge [4-Pack] (CX580XREPAK4) audio A spring check valve helps

A spring check valve helps control one-way flow in a compatible plumbing system

The 23540-111-000 is a practical service part when a compatible spa jet needs an internal to restore dependable jet performance

Designed for compatible high-output 3 HP applications

Helps support and stabilize compatible handrail installations

Hayward Swimclear Filter Cartridge [4-Pack] (CX580XREPAK4) audio A spring check valve helpsThe Hayward SwimClear filter cartridge set is designed for compatible SwimClear filter applications where all replacement cartridge elements are needed together. A cartridge set is useful because it allows the full internal filter pack to be replaced at one time, supporting balanced filtration and dependable system performance. This replacement is especially useful when the original cartridges are torn, clogged beyond cleaning, collapsed, or no longer