Pentair Clean and Clear Plus 420, 520, Waterway Crystal Water 425 Compatible Filter Cartridge - Pack of 4 SR Smith Velocity VR Frame Color/TrueTread The case is made of

The case is made of molded polypropylene

Instructions are included

you must order the Hold Down Kit to secure it (Item No

The UT-100 Non-Submersible Smooth Texture one gallon containers are available in 4 colors and are only available in one gallon containers

Flange mounting is also available

Pentair Clean and Clear Plus 420, 520, Waterway Crystal Water 425 Compatible Filter Cartridge - Pack of 4 SR Smith Velocity VR Frame Color/TrueTread The case is made ofThe 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