Pentair Clean and Clear Plus 420, 520, Waterway Crystal Water 425 Compatible Filter Cartridge - Pack of 4 state_Hawaii Commercial Size Chemical Feeders

Commercial Size Chemical Feeders

four Secondary Power Centers

Max-E-Pro Series Pumps

4 inches with water stop

This is a Maytronics Bottom Lid Assembly for several Dolphin pool cleaners

Pentair Clean and Clear Plus 420, 520, Waterway Crystal Water 425 Compatible Filter Cartridge - Pack of 4 state_Hawaii Commercial Size Chemical FeedersThe 4 Pack of Hurricane HF7471 04 Advanced Cartridge Filters are compatible with Pentair Clean and Clear Plus 420, 520 (pre 1998), American Quantum CM and RPM 125 500, Waterway Crystal Water 425, and other compatible models. They are identical to Unicel C 7471, Pleatco PCC105, and Filbur FC 1977. The original manufacturer's names and part numbers are for reference only. Hurricane's advanced point bond filter media has tighter filtration capabilities