Filters, Replacement Cartridges

This Filter is a 40 Square Foot Filter Cartridge that is 6" Outside Diameter x 8 1/4" in Length. It has a 1 1/2" SAE Threaded Fitting which is a Thick Thread that measures about 2" outside diameter of the threads. SAE Threads are really thick. This...

This filter is this most popular size and fits 70% of all tubs it is a 50 Square Foot Filter Cartridge that is 4-15/16" Outside Diameter x 13-5/16" in Length. It has a hole in the top and the bottom that are 2 1/8". Don't just order this filter though be...

This Item is a Microban Filter for Somerset Teleweir Eco Pur System and others.. It is 5" Wide X 6 5/8" Tall and has a 1 1/2" SAE Female Threaded fitting that measure about 1 7/8" Edge to edge on the threads on both ends of the filter.. This filters...

This filter is made specifically for Dream Maker Hot Tubs only and it is a 27 Square Foot Oval Shaped Filter Cartridge that is 6-1/4" Outside Diameter on the Widest Part of the Oval x 9-3/4" in Length. It has an Oval Hole in the top that measures about 4...

This filter is Designed for the Coast Hot Tubs 21 5/16 tall X 5 5/16" and has 2 1/8 holes top and bottom...  And fits   Diameter 5-5/16" Length 21-5/16" Top Style Open Top Physical Dimension 2-1/8" Bottom Style Open Bottom...

We are offering a Pre--2002 Master Spa Cartridge Filter 8" x 9 1/4" Wide 2"mpt 70sqft Master Spa Most 1998,1999, 2000. This filter is 8" long x 9 1/4 " Wide and has   2"MPT which measures about 2 1/4" Across . The overall length of this housing...

We are offering a Filter Cartridge, 95sqft, 23-5/8", 4-15/16" 2-1/8", 2-1/8" top and bottom hole. It has a hole in the top and bottom that is 2 1/8". Don't just order this filter though be sure it is the correct size. 17-175-1840, FC-2940, AK-3052 , ...

This Filter is a 50 Square Foot Filter Cartridge that is 4 5/8" Outside Diameter x 14 3/4" in Length. It has a 1 1/2" MPT Threaded Fitting. This Filter is Found in Addison, Advanced Spa, American Classic, Aqua Leisure, Aqua Tech, Dimension One, Dynasty...

We are offering a Filter Cartridge 50SQft 10 3/4" x 7" with 2" Male Slip for Caldera Spa.This filter is a popular size and fits some Caldera tubs by Watkins it is a 50 Square Foot Filter Cartridge that is 7" Outside Diameter x 10-3/4" in Length. It has a...

This Filter Cartridge is an Antimicrobial VersionMicroban¨ antimicrobial agent is impregnated into the fibers of the filter media, resulting in a bluish color and allowing the antimicrobial agent to be released over the entire life of the filter.