Pentair Clean & Clear Plus 520 Cartridge [4 Pack] (179136) coverlifts the internal is often the

the internal is often the part that can restore that difference most directly

Designed for compatible 155B and 155C heaters

Designed for compatible compact valve internal service

Hydro-Quip Gatsby LowFlow heater

Pentair Clean & Clear Plus 520 Cartridge [4 Pack] (179136) coverlifts the internal is often theLarge cartridge systems depend on clean, properly sized cartridges to maintain flow and water clarity. This four pack of Pentair Clean & Clear Plus 520 cartridges provides a complete replacement set for compatible CCP 520 filter systems. Replacing the full set together helps balance filtration performance across the tank and can reduce pressure issues caused by uneven or aged elements. Four cartridge replacement set for compatible 520 sq ft systems