HF-STR3-400S7-SET Premium Pool Filter Cartridge Inner and Outer Set - Replacement for 400 Sq. Ft. Sta-Rite 25022-0224S Outer and 25021-0223S Inner System 3 S7M400 Set Cordless Dolphin this kit restores reliable filtration

this kit restores reliable filtration

Cristal-Flo II High-Rate Sand Filters (22" Tank)

worry-free cleaning that you can trust

rapidly clears cloudy water

HF-STR3-400S7-SET Premium Pool Filter Cartridge Inner and Outer Set - Replacement for 400 Sq. Ft. Sta-Rite 25022-0224S Outer and 25021-0223S Inner System 3 S7M400 Set Cordless Dolphin this kit restores reliable filtrationHurricane HF STR3 400S7 SET Premium Pool Filter Cartridge Inner and Outer Set Discover the Hurricane HF STR3 400S7 SET, a premium inner and outer cartridge replacement designed for Sta Rite System 3 S7M400 pools (400 sq ft). This USA made two piece kit preserves filtration geometry, ensuring a balanced flow and reduced pump wear while delivering crystal clear water with fewer backwashes all season long. Features Two piece inner and outer replacement