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With so many different sizes, it can be difficult to find the right filter for your pool or spa. Use the Search Our Filters feature below and we'll help you find what you need. Simply select the Length, Diameter and Hole size of your filter and then click on the SEARCH button.

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178 products

Showing 49 - 72 of 178 products

Showing 49 - 72 of 178 products
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FPI C25 Aquatune/Magnum Replacement Cartridge - FP25FPI C25 Aquatune/Magnum Replacement Cartridge - FP25
FPI C50 Aquatune/Magnum Replacement Cartridge - FP50FPI C50 Aquatune/Magnum Replacement Cartridge - FP50
FPI C75 Aquatune/Magnum Replacement Cartridge - FP75FPI C75 Aquatune/Magnum Replacement Cartridge - FP75
Save $10.99
Hayward Star-Clear Plus C900 Aquatune/Magnum Replacement Cartridge - CX900RE - HW900Hayward Star-Clear Plus C900 Aquatune/Magnum Replacement Cartridge - CX900RE - HW900
Hayward Swimclear C100S - HW100SHayward Swimclear C100S - HW100S
Save $4.00
Hot Springs C30 Aquatune/Magnum Replacement Cartridge - 31489 - HS30Hot Springs C30 Aquatune/Magnum Replacement Cartridge - 31489 - HS30
Save $2.00
Hot Springs C65 / Tiger River Aquatune/Magnum Replacement Cartridge - 31114 - HS65Hot Springs C65 / Tiger River Aquatune/Magnum Replacement Cartridge - 31114 - HS65
Save $13.00
INSNRG quad 135, 4 per set for the Li540 replacement filter cartridge (16C30511003)-Magnum Replacement Cartridge Filter-AquatuneINSNRG quad 135, 4 required for the Li540 replacement filter cartridge (16C30511003) - RG135
Save $188.00
Intex B 20 square foot Aquatune/Magnum Replacement Cartridge-Magnum Replacement Cartridge Filter-AquatuneIntex B 20 square foot Aquatune/Magnum Replacement Cartridge-Magnum Replacement Cartridge Filter-Aquatune
Jandy / Zodiac CL / CV580, 4 required-Magnum Replacement Cartridge Filter-AquatuneJandy / Zodiac CL / CV580, 4 required-Magnum Replacement Cartridge Filter-Aquatune

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