Pentair Plug & Gasket Assembly for 2" MultiPort Valves

The Pentair Plug and Gasket Assembly for 2-inch Multiport Valves (Product #: 272531) is a factory-original OEM replacement hardware kit engineered to securely seal auxiliary or unused ports on high-capacity pool and spa fluid-routing manifolds. Designed specifically for Pentair, PacFab, and Sta-Rite® 2-inch Hi-Flow™ side-mount and top-mount six-position multiport backwash valves—commonly installed on Triton® series sand filters and FNS® Plus vertical grid D.E. systems—this assembly ensures absolute hydraulic containment. The kit consists of a heavy-duty, threaded closure plug injection-molded from a thick-walled, UV-stabilized engineering thermoplastic composite, paired with a high-density, custom-fit rubber sealing gasket. When threaded into an open port (such as an unused pressure gauge or winterization drain tapping), the plug compresses the gasket uniformly to establish a positive pressure-side barrier and eliminate suction-side air induction that would otherwise cause pump cavitation and loss of prime. Built to withstand aggressive chemical shocking, high chlorine or salt concentrations, and continuous hydraulic line surges at system operating pressures up to 50 PSI, this assembly is essential for maintaining proper equipment pad pressurization. The physical dry weight of this complete Pentair Plug & Gasket Assembly is approximately 0.06 pounds (roughly 0.96 ounces, with a nominal packaged shipping weight of 0.10 pounds), providing pool service technicians and homeowners with a rugged, leak-proof, and highly reliable hardware solution for flawless water circulation management.