Most Popular Filter Cartridges

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...

This Item is an Eco Pur Filter for the Teleweir System on Master Spa Build tubs.. It is 5" Wide X 3 1/2" Tall on the cartridge and has a 1 1/2" SAE Threaded fitting that measure about 1 7/8" Edge to edge on the threads.. This filters works with some but...

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. Please don't be an idiot like Charles and think this is a filter and...

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"...