Pool Filters

8" Unicel Filter Cartridge - C8450 Unicel # C-8450 Pleatco # PCS50N Filbur # FC-3310 OD 8" Length 9" OEM # C8450 Top End Cap 2-1/16”/ Open Bottom ...

4-15/16" Unicel Filter Cartridge - 4CH-23 25 sq ft Freeflow Spas CLX Specifications:  Unicel # 4CH-23 Pleatco # PFF25TC-P4 Filbur # FC-2400 OD 4-1...

6-15/16" Unicel Filter Cartridge - C6640 Unicel # C-6640 Pleatco # PJ40-4 Filbur # FC-1440 OD 6-15/16" Length 19-3/8" OEM # 23-2214-01 OEM # C6640...

7" Unicel Filter Cartridge - C7442 Unicel # C-7442 Pleatco # PA40-4 Filbur # FC-1228 OD 7" Length 14-1/8" OEM # CX410RE OEM # C7442  Top End Cap 3...

135 Square Foot Waterway, Coast Spas. Replacement for: Coast Spas (Canada); Waterway Plastics 817-0147; Get more efficient filtration and better wa...

65 Square Foot Hot Springs Spas/Watkins Mfg. Note: The original was 45 Square Foot (162 pleats). This replacement has been upgraded to 65 Square Fo...

125 Square Foot Sundance Spas. Note: Models dated before 2006 (contains a core block/plug). Replacement for: Sundance Spas 6540-488 (Note: Models d...

35 Square Foot Marquis Spa (new style). Replacement for: Marquis Spas 20042; Unicel 35 Square Foot top load (Note: Replacement for Marquis Spas.); ...

Hydrotools 19" Sand Filter is designed from the ground up to provide efficient, trouble-free filtration, ease of maintenance, and long life. It pro...