Our unique, patented process creates a one-piece, non-corrosive tank with superior strength and durability. The Sand Dollar® filter features a clamp style, six-position multiport valve. Special lateral design provides superior flow characteristics and long filter cycles for economical operation. Maximum Operating Pressure 35 psi Six-position, Top-mounted Multiport Valve Combination water and sand drain makes servicing and winterizing fast and easy SD 35 SAND DOLLAR TOP MOUNT SAND FILTER WITH MULTIPORT VALVE Regular price: $395.24 Sale price: $239.68 SD 40 SAND DOLLAR TOP MOUNT SAND FILTER WITH MULTIPORT VALVE Regular price: $498.42 Sale price: $289.75 SD 60 SAND DOLLAR TOP MOUNT SAND FILTER WITH MULTIPORT VALVE Regular price: $540.22 Sale price: $358.80 SD 80 SAND DOLLAR TOP MOUNT SAND FILTER WITH MULTIPORT VALVE Regular price: $546.90 Sale price: $387.67