Features: 1) High rate tanks in bobbin wound fiberglass, reinforced with polyester resin 2) 16" - 24" filters equipped with a 1.5" 7-position multi-port valve 3) Multi-port valves with unique design that offer long-term reliable service 4) Fitted with corrosion-proof collectors and a diffuser that enhances the capacity of filtration 5) Ideal for use in spas and private swimming pools, where high performances filtration is required