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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50 sq ft Spa Filter Cartridge - 13-1/2" x 4-15/16" - 2" Female SAE Thread - Four Winds, Barefoot Compatible
HTPOFAmerica
MSRP: $84.99$64.99Replacement cartridge filter measuring 13-1/2" in length by 4-15/16" in diameter, featuring a 2" female SAE large thick thread connection (actual inner diameter measures approximately 2-1/4" to 2-3/8").This 50 sq ft filtration cartridge is designed for...MSRP: $84.99$64.99 -
Filter, Cartridge, 65sqft, 3"ot, 3"ob, 8-1/2", 10-1/2" 3oz
Horizon Series by Filbur
MSRP: $96.03$74.99MSRP: $96.03$74.99 -
50sqft Spa Filter Cartridge for Dynasty & Garden Leisure - 5-5/16" x 10-1/8" with 2-1/8" Openings
HTPOFAmerica
MSRP: $47.46$36.99Premium replacement filter cartridge designed for Dynasty Spas, Garden Leisure, and multiple spa brands. This 50 square foot filtration cartridge measures 5-5/16" in diameter by 10-1/8" in length, featuring 2-1/8" open holes at both top and bottom ends...MSRP: $47.46$36.99 -
MSRP: $63.17$49.99 -
25 Sq Ft Spa Filter Cartridge - String Height, 2-1/8" Opening, 5-11/16" Dia, 10-3/8" Length, 3oz
Horizon Series by Filbur
MSRP: $38.86$30.99Premium replacement cartridge designed for front-loading skim filtration systems. This 25 square foot spa filter features string height pleating with precise dimensions: 2-1/8 inch open bottom diameter, 5-11/16 inch body diameter, and 10-3/8 inch overall...MSRP: $38.86$30.99 -
Sundance Spa Filter Cartridge 19" x 8.5", 125sqft, FC-2780, PSD125-2000, 6540-488, C-8326 Replacement
Horizon Series by Filbur
MSRP: $144.34$112.99Replacement filter cartridge designed specifically for Sundance spa systems, measuring 19 inches in length by 8.5 inches in diameter. This 125 square foot filtration cartridge features a 2.5-inch open hole at the top end and a 2-inch male slip nipple at...MSRP: $144.34$112.99 -
Filter, Cartridge, 30sqft, ht, 3-1/2"mpt b, 5-1/16", 8-1/2" 3oz
Horizon Series by Filbur
MSRP: $50.09$38.99MSRP: $50.09$38.99 -
10 sq ft Spa Filter Cartridge - 4" H x 4-1/4" Dia, Dual 1-15/16" Openings, Skim Filter Replacement
Horizon Series by Filbur
MSRP: $22.99$18.99Premium replacement cartridge filter delivering 10 square feet of filtration surface area for superior spa water clarity. This compact filter measures 4 inches in height with a 4-1/4 inch outer diameter, featuring dual open-end configuration with...MSRP: $22.99$18.99 -
Jacuzzi Whirlpool Spa Filter 9 3/4" x 4 5/8" 25sqft FC-0131 4CH-24 PGS25P4 Gatsby Blue Ridge Echo
HTPOFAmerica
MSRP: $45.99$38.99Replacement spa filter cartridge measuring 9 3/4" in length by 4 5/8" in diameter, featuring a closed top with handle and a 1 1/2" mpt thin threaded nipple (approximately 1 13/16" across threads on bottom). Compatible with various Jacuzzi Whirlpool hot...MSRP: $45.99$38.99 -
50sqft Spa Filter for Cal Spa & Marquis 12-1/2"x5-3/16" 2"MPT 5CH-352 5CH-502 FC-0195 PPM50
Horizon Series by Filbur
MSRP: $59.99$44.99This replacement filter cartridge is designed for select newer Cal Spa and Marquis Spas models. The cartridge measures 12-1/2" in height by 5-3/16" in diameter and features 2" Male Pipe Thread (MPT) connections with thick threading that has an outside...MSRP: $59.99$44.99 -
35 sq ft Spa Filter Cartridge 9-1/4" x 4-15/16" | 2-1/8" Openings | C-4335 FC-2385 PRB-35-IN
HTPOFAmerica
MSRP: $48.99$38.99This 35 square foot replacement filter cartridge measures 9-1/4" in length with a 4-15/16" outside diameter. Both top and bottom feature open-style 2-1/8" openings for optimal water flow through your hot tub filtration system. This widely-used cartridge...MSRP: $48.99$38.99 -
30 sq ft Hot Spring Spa Filter Cartridge 6" x 10-1/2" | FC-3915 C-6430 PWK30 | 1 15/16" Openings
Horizon Series by Filbur
MSRP: $42.00$32.99Genuine replacement 30 square foot filter cartridge engineered for Hot Spring spas manufactured by Watkins after 1990. This premium filtration cartridge measures 6 inches in outside diameter and 10-1/2 inches in overall length, featuring 1 15/16 inch...MSRP: $42.00$32.99