Most Popular Filter Cartridges

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...

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,...

We are offering a Pre--2002 Master Spa Cartridge Filter 8" x 9 1/4" Wide 2"mpt 70sqft Master Spa Most 1998,1999, 2000. This filter is 8" long x 9 1/4 " Wide and has   2"MPT which measures about 2 1/4" Across . The overall length of this housing...

This filter is found only in Sundance Hot Tubs that is 19" long x 8 1/2" Wide and it has a hole in one end that is 2 1/2" that slips over a fitting with a nut ti tighten it into place and a nipple on the other end that is 2" wide that slips into a...