Pentair FullFlow® Shaft Assembly Valve

The Pentair FullFloXF® High-Performance Valve Shaft Assembly (Product #: 270112) is a factory-original OEM replacement internal fluid-routing core engineered to handle massive flow velocities within commercial and high-end residential pool or spa setups. Specifically designed for the hydraulically optimized 3-inch Pentair FullFloXF® Backwash Multiport Valve (Product #263080)—which is paired with high-capacity Triton® II sand systems, Quad D.E.®, and FNS® Plus vertical grid filtration tanks—this structural rod serves as the mechanical axis for water diversion. Injection-molded from a thick-walled, ultra-high-impact engineering polymer composite, the shaft column features integrated channels designed to hold the specialized, heavy-duty compression o-rings that form an absolute hydraulic barrier inside the valve casing. When an operator pushes, pulls, or twists the manual comfort-grip exterior handle, this central piston translates that physical energy directly into the valve body, shifting the internal water flow smoothly between standard filtration, high-velocity backwashing, and rinse modes without causing internal fluid cross-contamination or pressure-side weeping. Built to easily manage baseline hydraulic surges and continuous flow loops under operational system line pressures up to 50 PSI, its robust polymer matrix resists chemical degradation from high chlorine shock, salt-chlorine generation, and hard water mineral scaling. The physical dry product weight of this single Pentair FullFlow Shaft Assembly Valve component is approximately 0.65 pounds (roughly 10.40 ounces, with a nominal boxed shipping weight of up to 1.10 pounds depending on specific retail box cushioning), providing pool service professionals and homeowners with a highly durable, low-friction replacement standard for flawless water management.