This filter will fit models of hot tubs from the following:-

Garden Leisure, Arctic Spas, Aqua Leisure, Apollo Spas, Artesian Baja, Beachcomber, Cal Spas, Canadian Spas, Coast Spas, Coleman Spas, Coyote, Diamante Spas, Freedom Spas, Great Lakes Spas, Hollywood Spas, Hydropool, Hydro Spa, Jacuzzi J200 series, QCA Wave Series, Signature Spas, South West Spas, Spa Crest, Sun Ray Spas, Sunrise Spas, US Spas