Pentair SD40 Almond Tank with Drain

The Pentair Sand Dollar SD40 Almond Tank with Drain (part number 145341) is a rugged, one-piece structural replacement shell engineered exclusively for the mid-sized Pentair Sand Dollar SD40 top-mount pool and spa sand filtration systems. Blow-molded from heavy-duty, UV-resistant thermoplastic polymers, this almond-colored pressure vessel features a dimensional footprint measuring approximately 20 inches in length, 23 inches in width, and 35 inches in height. Its primary structural role is to serve as the main containment chassis holding up to 150 pounds of silica filtration sand and handling a continuous, high-velocity distribution volume.

The tank is engineered with an integrated bottom sand-and-water drain port to ease seasonal winterization pumping or media changes, and its flanged upper opening is optimized to accept a standard 1.5-inch multiport backwash valve via a two-piece split-clamp configuration. This robust, seamless construction enables the filter vessel to safely sustain continuous internal system operating pressures up to 50 PSI without expanding, weeping, or structural failure under intense pump vibration surges. Devoid of any internal piping, laterals, or standpipes, this individual empty replacement tank shell carries a net product and shipping weight of approximately 23.0 pounds.