The HTF0150 Hot Tub Filter is suitable for: Garden Leisure, Arctic Spas, Aqua Leisure, Apollo Spas, Artesian Baja, Beachcomber, Cal Spas, Canadian Spas, Coast Spas, Coleman Spas, Coyote Spas, Diamante Spas, Freedom Spas, Great LAkes Spas, Hollywood Spas, Hydropool, Hydro Spas, Jacuzzi J200 Series, QCA Wave Series, Signature Spas, South West Spas, Spa Crest, Sun Ray Spas, Sunrise Spas, US Spas.