Filters, Replacement Cartridges
Replace dirty or worn hot tub filter cartridges to maintain clean, healthy spa water. Regular filter replacement is essential for water clarity and protecting your spa equipment. Our filter cartridges match OEM specifications for proper fit and filtration performance. We offer competitive international shipping rates to buyers worldwide.
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Filter, Cartridge, 100sqft, ht, 3-1/2"ob, 8", 16-1/2" 3oz
Horizon Series by Filbur
MSRP: $131.83$99.99MSRP: $131.83$99.99 -
Filter, Cartridge, 35sqft, ht, 2"mpt b, 7", 7-9/16" 3oz
Horizon Series by Filbur
MSRP: $57.57$44.99MSRP: $57.57$44.99 -
50 Sq Ft Spa Filter Cartridge Pair - 2-1/8" Open Ends, 4-15/16" Dia, 6-5/8" Length, 3oz Media
HTPOFAmerica
MSRP: $72.09$54.99Premium replacement cartridge filter pair designed for optimal hot tub water filtration. Each cartridge in this two-pack features 50 square feet of 3-ounce filtration media for superior debris...MSRP: $72.09$54.99 -
75 sq ft Spa Filter Cartridge for Caldera Hot Tubs - 7" x 14-3/4" with 2-11/16" Opening
HTPOFAmerica
MSRP: $94.99$72.99Independent Supplier & Replacement Part Notice We areMSRP: $94.99$72.99 -
Spa Filter Cartridge 40sqft | 2" MPT Bottom | 7" Height 6" Width | 3oz Microban
Horizon
MSRP: $85.74$65.99This premium 40 square foot hot tub filter cartridge delivers superior water filtration performance with built-in antimicrobial Microban technology. Engineered as a reliable generic alternative for...MSRP: $85.74$65.99 -
Master Spa & Down East Filter Cartridge 7 3/8" x 8" Wide 4" Hole 2004+
HTPOFAmerica
MSRP: $58.99$47.99Replacement Filter Cartridge for Master Spa and Down East hot tubs manufactured 2004 and newer. This cartridge measures 7 3/8 inches in length by 8 inches in width. The top opening diameter is 4...MSRP: $58.99$47.99 -
Filter, Cartridge, 25sqft, 2-3/8"ot, 2-3/8"ob, 5", 13-5/16" 4oz
Horizon Series by Filbur
MSRP: $45.26$34.99MSRP: $45.26$34.99 -
Spa Filter Cartridge 80sqft - 17-3/4" x 5-5/16" - 2-1/8" Openings - FC-2972, C-5397, PLBS100
HTPOFAmerica
MSRP: $88.99$67.99This replacement spa filter cartridge delivers 80 square feet of filtration surface area with precise dimensions for optimal performance. The cartridge measures 17 3/4 inches in length and 5 5/16...MSRP: $88.99$67.99 -
MSRP: $106.49$79.99 -
Filter, Cartridge, 50sqft, ht, 2-11/16"ob, 7", 10-3/4" 3oz
Horizon Series by Filbur
MSRP: $83.71$64.99MSRP: $83.71$64.99 -
Filter, Cartridge, 60sqft, rem cap ot, 2"SAE b, 6-5/8", 15-1/2" 3oz
Horizon Series by Filbur
MSRP: $89.89$69.99MSRP: $89.89$69.99 -
Artesian Resort Series 50sqft Spa Filter Cartridge - 2" MPT, 6-3/4" x 8" with Handle
HTPOFAmerica
MSRP: $70.51$54.99This replacement cartridge is designed for Artesian Resort Series hot tubs, delivering 50 square feet of filtration surface area to keep your spa water crystal clear.Important: The smaller center...MSRP: $70.51$54.99