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"...

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...

50 Sq Ft filter cartriridge used industry wide but common in Jacuzzi whirlpool models that had a front load skimmer. Can also be found in Clearwater spas various models. This filter has a closed top and a 2-1/8 hole on the bottom that fits over a nipple...

This part is a Filter for Rainbow Pentair Predator-II-Mini (172212x) 25sqft 13-5/16" Tall X 4-15/16" Wide (2) 2 1/8" Holes..

This parts is a Filter Cartridge, 40sqft, 2" male pipe thread, 6" Wide , 7-5/8" 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...

Eco Pur Charge filters by Master Spas can help reduce your chlorine usage by up to 75%, while also extending the lifetime of your spa or hot tub. The new Eco Pur Charge Filter is the replacement for all previous Eco Pur Mineral cartridges for Master...

Master Spa Outer filter PMA-R1 for select H2X®, Twilight, and Legend Series™ spas and hot tubs. This Eco Pur Charge product features advanced filtration technologies.   For the part that fits into the center of this filter click this...

This filter fits some Jacuzzi Premium J-460 and J-465 Filter Cartridge, 4-3/4" Wide X 8" Tall 2" 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...

This filter fits some Jacuzzi Premium J-400 Series Hot Tubs. It is 12 1/2" Tall and 4 3/4" 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.  In...

This part is a Cartridge Filter 5 3/4 to 6" Tall x 8" Wide 2" Male SAE thread  50sqft found in some Bullfrog Hot Tubs.  This filter has a threaded nipple that would measure about 2 3/8" Across the threads. The threaded adapter...

This part is a Cartridge Filter 8" x 7" Wide 2" male pipe thread  32sqft found in some Artesian, Coleman or Maax Hot Tubs. This filter is 8" long x 7 " Wide. This filter has a threaded nipple that would measure about 2 3/8"...

This part is a replacement filter for Dual Filter applications in 2002+ Master Spas and Down East Spas. This filter is found on the inside of a larger filter and uses the stalk system with a center stalk and a threaded cap. You can find these different...