Most Popular Filter Cartridges

This filter is 13 1/2" X 4 15/16" and has a female SAE Large Thick Thread that is 2" which would really measure about 2 1/4-2 3/8" ID. This filter is found in Some Newer Cal Spas and others. If you have the shorter verison of this filter which is 9 1/4"...

Popular screw in filter cartridge in 40 Sq Ft used in many front access filter units. Normally found screwed into your spa behind a floating weir door. This filter has a 1-1/2" MPT thread with a handle on top.  Application Waterway Bottom...

This parts is a Filter Cartridge, 40sqft, 2" male pipe thread, 6" Wide , 8" Tall. It filters some Artesian Hot Tubs, Master Spas and more..  Application Artesian Spas Bottom Physical Dimension 2-3/8"od Bottom Style Male Pipe Thread...

We are offering a Cartridge Filter 9 1/4" Tall x 6" Wide 2"mpt 40sqft and fits newer Master Spa Legend and Twilight Series tubs as a replacement for the Microban filter previously used.  This cartridge is comparable to the Master Spa...

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 parts is an Artesian, Resort Series, Filter, Cartridge, 50sqft, 2" male pipe thread, 6-3/4" Wide, 8" Tall.. Note The small filter found in the center between these filters can be found here.. Artesian, Resort Series, Filter, Cartridge, 6 sqft,...

This filter fits Jacuzzi Premium Hot Tubs J-300, J-400 Series. It is 15 1/2" Tall and 6 5/8" Around and Features a 2" SAE which is a Thick Thread and measures a hair less than 2" Inside diameter and measures 2 3/8" to the outside of the threads. There...

 This filter is 13 1/2" X 4 15/16" and has a female SAE Large Thick Thread that is 2" which would really nmeassure about 2 1/4-2 3/8" ID. This filter is found in Four Winds Tubs, Barefoot and others.  If you have the shorter verison of this...

This Filter Cartridge fits Some New Cal Spa and Marquis Spas. It is 12 1/2" Tall x 5 3/16" Wide with 2" Mpt Threads which is a think thread that measures about 2 3/8" outside diameter. The MPT Threads measure between 2 1/4 and 2 3/8" edge to edge. It...