Most Popular Filter Cartridges

This Filter Core and Standpipe with Valve is made specifically for Oval Shaped Filter Cartridge that is 6-1/4" Outside Diameter on the Widest Part of the Oval x 9-3/4" in Length.

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 Dynasty Bahama Tubs and others. If you have the shorter version of this filter which is 9 1/4"...

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 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,...

This filter Fits Some AquaTerra & Freeflow Spas, it is a 40 Square Foot Filter Cartridge that is 5-3/8" Outside Diameter x 9-1/2" in Length and features a 1 1/2" MTP Fine Threaded Male Fitting which measures about 1-3/4" Edge to Edge....

This Catalina 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 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 parts is an Artesian, Resort Series, Filter, Cartridge,  6 sqft, 1-7/8" Hole, 2" male pipe thread , 6" Wide, 7" Tall.. NOTE: This filter is no longer available with the hole in the top where you have to reuse your plastic plug.. The filter...

This Filter is a 40 Square Foot Filter Cartridge for a Dynasty Hot Tub 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...

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 X268543...

This Butterfly Style Plastic Filter Screen Fits some Dimension One and At Home Hot Tubs after 2000 that use a 10 1/2" Ta x 7 1/8" Wide has a closed top with castle tabs and features a butterfly type twist lock bottom where you slide it down over this...