Cal Spa Hot Tub Filter Cartridges

This Filter Cartridge fits Some New Cal Spa and Marquis Spas. It is 12 1/2" Tall x 5 3/16" Wide with 2" Mpt Threads which is a think thread that measures about 2 3/8" outside diameter. The MPT Threads measure between 2 1/4 and 2 3/8" edge to edge. It...

This filter is this most popular size and fits 70% of all tubs it is a 25 Square Foot Filter Cartridge that is 4-15/16" Outside Diameter x 13-5/16" in Length. It has a hole in the top and the bottom that are 2 1/8". Don't just order this filter though be...

This Filter is 14-7/8" tall x 5" wide it has 2 1/8" holes on the top and bottom. This filter does fit some Cal Spas but looks very silmilar to a standard sized filter which is 13 5/16" tall but this filter is slightly taller at 14 7/8". Please...

This Cal Spa filter is a 25 Square Foot Filter Cartridge that is 4-15/16" Outside Diameter x 13-5/16" in Length. It has a hole in the top and the bottom that are 2 1/8". Don't just order this filter though be sure it is the correct size for your Cal Spa....