... Laminated Polyester reinforced with fiberglass sand filter are very latest in pool filter technology ,Molded of durable ,corrosion- ... water filtration of spa ,private or semi-commercial swimming pools, aquarium and water amusement park. 100% ... valve let u select any of the valve /filter operation with a simple lever -action UV- ... warranty ,5 -10 years life-time Swimming Pool Filter -- MINDER "GH" SERIES