We are selling hot tub filters since 4 years. The first major spa brands we supported were Artesian Spas, Hotspring Spas and Master Spas. Due to high demand we added one more type after the other. In the meantime we produce 8 different types of EGo3 hot tub filters for almost all major spa brands like Jacuzzi, Sundance, Cal Spas aso. No matter which spa you own normally we got the right EGo3 hot tub filter for you. Please just browse our filter webshop. If you need further assistence for choosing the right type just let us know.