MARIMEX Filter cartridge S1

The Intex 29001 type S1 filter cartridge is designed for Pure Spa hot tubs. It will provide you with crystal clear water free of large and small impurities, algae or bacteria. It has a fine filter that does not let even the smallest particles through. The package contains two cartridges so you don't have to buy new ones often. However, you do not have to change them immediately if they become clogged; It is often enough to wash them with a stream of water and put them in the whirlpool again.