Pentair 26" Cristal-Flo II Top-Mount Sand Filter with 2" Valve

Pentair Cristal-Flo™ II 26" Top-Mount Sand Filter with 2" MPV (145387)

The Pentair Cristal-Flo™ II 26-inch Top-Mount Sand Filter (Product #: 145387 / Model CF1126) is a high-capacity, heavy-duty water filtration system engineered to deliver pristine clarity for medium-to-large residential inground or above-ground swimming pools. The filter vessel is blow-molded as a single, seamless unibody from extra-thick, high-density polyethylene thermoplastic, ensuring complete immunity to chemical corrosion, scaling, and severe outdoor weathering. This upgraded 26-inch configuration is outfitted with an oversized, heavy-duty 2-inch six-position top-mount multiport valve (MPV) with an ergonomic lever handle, allowing operators to easily toggle between filter, backwash, rinse, waste, closed, and recirculate functions while significantly reducing hydraulic restriction. Internally, the filter utilizes a self-cleaning lateral matrix and a snap-fit underdrain grid that disperses water uniformly across its 3.9 square feet of effective filtration area, comfortably supporting a robust continuous design flow rate of up to 75 gallons per minute (GPM) at a maximum operating threshold of 50 PSI. This balanced hydraulic profile prevents water channeling, maximizing dirt-holding capacity to capture fine debris and extending operational runtimes to lower overall chemical and energy costs. Routine service and seasonal winterization are simplified by a large, tool-free combination sand-and-water drain plug at the base of the tank, an integrated continuous High Flow™ internal air relief system, and a top-mounted pressure gauge. The dry product weight of the Pentair Cristal-Flo II 26-inch filter body complete with its 2-inch multiport valve assembly is approximately 45 pounds (with a boxed shipping weight of roughly 76 pounds, noting that full operational deployment requires an initial media charge of 350 pounds of standard pool silica sand), offering an exceptionally durable, energy-efficient, and low-maintenance cornerstone for modern pool equipment pads.