Hot Tub Filters - Unicel Filter Cartridges

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FILTER CARTRIDGE 36 SQ FTx 8in ODx 6-3/4in Hx 102mm

Upgrade your filtration efficiency with this 36 sq. ft. cartridge, designed for effective debris capture and easy maintenance. It's a great fit for standard systems.
$15.84

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FILTER CARTRIDGE 14 SQ FTx 4-5/8in ODx 6-3/4in Hx 1 1/2" MPT

Enhance your spa's water clarity with this efficient 14 square foot filter cartridge. Its design ensures a snug fit and ease of replacement for smooth operation.
$8.16

Details

FILTER CARTRIDGE 9 SQ FTx 4-3/4in ODx 11-3/8in Hx 1 1/2" MPT

Enjoy a refreshing spa experience with this filter cartridge designed for effective filtration. Compact size ensures it fits easily in a variety of systems.
$11.46

Details

FILTER CARTRIDGE 20 SQ FTx 4-5/8in ODx 9-3/4in Hx 1 1/2" MPT

Maintain optimal water clarity in your spa with this efficient filter cartridge, designed for effective dirt removal. Its sturdy design guarantees high filtration performance.
$9.90

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FILTER CARTRIDGE 24 SQ FTx 7in ODx 9-13/16in Hx 76mm

Keep your spa water pure with this efficient filter cartridge. Its compact design ensures robust filtration, enhancing your relaxation experience.
$12.70

Details

FILTER CARTRIDGE 35 SQ FTx 5-3/16in ODx 10-3/4in Hx 2" MPT

Upgrade your water filtration with this 35 sq ft filter cartridge, ideal for enhancing clarity and performance in your spa or pool system.
$11.58

Details

FILTER CARTRIDGE 119 SQ FTx 8in ODx 18in Hx 2" MPT

Maximize your water quality with this 119 square foot filter cartridge. Its large design captures debris effectively for a refreshing soak.
$38.35 $59.00
35% OFF!

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FILTER CARTRIDGE 46 SQ FTx 10-1/16in ODx 8-9/16in Hx 156mm

Achieve crystal-clear water in your spa or pool with this high-performance 46 sq. ft. filter cartridge. Its specific dimensions ensure reliable operation and compatibility with standard systems.
$17.64

Details

FILTER CARTRIDGE 81 SQ FTx 8-1/2in ODx 10-1/2in Hx 76mm

Enhance your water filtration with this 81 sq. ft. cartridge, expertly designed for optimal debris capture and efficient operation. Its specific dimensions ensure a perfect fit.
$24.16

Details

FILTER CARTRIDGE 37 SQ FTx 6in ODx 8-1/4in Hx 1 1/2" SAE

This 37 sq ft filter cartridge ensures optimal filtration performance. Designed for straightforward setup, it enhances your spa's water quality effortlessly.
$12.66

Details

FILTER CARTRIDGE 30 SQ FTx 5-3/8in ODx 7in Hx 3.5" MPT

Ensure top-tier water quality with this 30 sq ft filter cartridge, perfect for various hot tub systems and easy to install.
$11.54

Details

35SF CARTRIDGE, 4-15/16" X 9-1/4" W/SAE THREAD

Upgrade your filtration system with this 35SF cartridge, perfect for maintaining clear, clean water. Its reliable design ensures ease of maintenance and fits most standard systems.
$103.55

Details