Pentair 2" FNS Plus Filter Hi-Flow Valve with Plumbing

The Pentair 2" FNS® Plus Filter Hi-Flow™ Multiport Valve with Plumbing (Product #: 261142) is a factory-original, commercial-grade water control manifold assembly engineered to provide flawless fluid routing and maximum hydraulic efficiency for high-capacity vertical grid diatomaceous earth (D.E.) filtration systems. Specifically designed as a pre-plumbed, direct-fit companion for premium Pentair FNS® Plus filters, this heavy-duty six-position valve utilizes a large 2-inch internal plumbing profile that significantly minimizes friction loss, allowing modern variable-speed pumps to maintain optimal circulation velocities while maximizing energy savings. Injection-molded from an ultra-rugged, thick-walled engineering thermoplastic composite, the entire valve housing offers total immunity to aggressive pool chemicals, salt-chlorine generation, and heavy mineral scale buildup under continuous operating system pressures up to 50 PSI. The robust upper control lever allows operators to smoothly shift through six vital hydraulic modes—Filter, Backwash, Rinse, Waste, Closed, and Recirculate—while the pre-installed internal rubber spider gasket and heavy-tension stainless steel compression spring ensure absolute isolation between fluid chambers to eliminate waste line weeping. This comprehensive kit arrives pre-plumbed with factory-aligned PVC bulkhead piping adapters and heavy-duty threaded union nuts, allowing pool service technicians or DIY homeowners to quickly glue or thread the assembly directly into the filter tank ports without tricky field measurements. The physical dry weight of this complete Pentair 2" FNS Plus Filter Hi-Flow Valve with Plumbing assembly is approximately 5.40 pounds (with a boxed shipping weight of roughly 6.50 pounds), providing an exceptionally durable, reliable, and time-saving plumbing solution for pristine pool water management.