Four Winds Hot Tub Filter Cartridges

This filter is 13 1/16" Tall X 5" Wide 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 can be found on some American Spa and Four Winds brand tubs.. Diameter  ...

 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 filter...

This part is a 35 Square Foot Filter Cartridge that is 4-15/16" Outside Diameter x 9-1/4" in Length. It has a hole in the top and the bottom that are 2 1/8". This Filter (The Most Popular) is found many Spa Hot Tub Brands Aber , After Hours , Belize ,...

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 11 1/4" X 4 15/16" and has a female SAE Large Thick Thread that is 2" which would really meassure about 2 1/4-2 3/8" ID. This filter is found in some Four Winds Tubs and others. If you have the longer verison of this filter which is 13...

This part is a 100 Square Foot Filter Cartridge that is 17 13/16" Tall x 6-9/16" Wide with a 2 3/8" Hole on Top and Bottom it can be found in some H2O or Four Winds Swim Spas and many other brands as well. Application    H2O Spas,...