6CH-940 – 45 Sq. Ft. H2X Filter – For use in the Michael Phelps H2X Swim Spas as an alternative to the Swim Spa Microban Filter. Part of the Eco-Pur Mineral Purification Filter system, but can also be used separately. If used in the Eco-Pur Mineral Purification Filter system, pair with the X268045 Swim Spa Mineral Filter. Used in all Michael Phelps & H2X Swim Spa models. Measures: 6″ (OD) x 8-1/4″ (Length), with injection-molded 1-1/2″ SAE thread. 45 Sq. Ft. Top Load Filter.