Pentair 1.5" Multiport Valve Diverter Gasket

The Pentair 1.5" Multiport Valve Diverter Spider Gasket (Product #: 272401) is a factory-original OEM replacement internal sealing component engineered to isolate the dynamic flow chambers of high-capacity pool and spa backwash manifolds. Specifically designed to fit the seven-spoke wheel configuration inside Pentair, PacFab, and Praher 1.5-inch top-mount and side-mount six-position multiport backwash valves—which are commonly paired with residential Sand Dollar® and Tagelus® sand filters—this critical gasket sits permanently seated within the tracks of the valve body chamber. When the manual control handle and spring-loaded rotor are compressed downward during standard filtration, this spoke barrier forms an airtight, absolute mechanical seal between separate water ports, effectively preventing pressurized pool water from cross-contaminating lines or chronically weeping down the backwash waste line. Custom-molded from a premium, high-density elastomeric rubber compound, the component delivers exceptional compression memory, advanced ozone resistance, and low structural friction, allowing it to withstand continuous exposure to high chlorine or bromine concentrations, heavy pool mineral scaling, and intense thermal heat under operating line pressures up to 50 PSI without swelling, distorting, or dry-rotting. The physical dry product weight of this single Pentair 1.5" Multiport Spider Gasket is approximately 0.10 pounds (roughly 1.60 ounces, with a packaged shipping weight of 0.20 pounds), providing an indispensable, highly reliable, and vital hardware replacement to restore optimal hydraulic pressure and maintain pristine pool water circulation.