Pentair Stainless Steel Spring for 1-1/2" and 2" Multi Valves

The Pentair Stainless Steel Spring for 1.5-inch and 2-inch Multiport Valves (Product #: 272400) is a factory-original OEM replacement hardware component engineered to maintain the crucial downward sealing pressure inside high-capacity pool and spa filtration loops. Specifically designed to fit within the upper dome assembly of both 1.5-inch and 2-inch top-mount and side-mount six-position backwash valves—which are commonly paired with premium Triton® sand filters and FNS® Plus or Quad D.E.® vertical grid separation tanks—this heavy-duty compression spring provides the mechanical force required to keep the internal diverter rotor firmly seated against the rubber spider gasket. This continuous tension establishes an absolute hydraulic barrier between separate fluid chambers, preventing pressurized pool water from cross-contaminating lines or chronically weeping down the backwash waste line during standard filtration cycles. Whenever a pool technician or homeowner depresses the manual control handle to shift routing modes, this spring compresses smoothly to allow rotation and then instantly snaps the diverter back down into the next designated indexing detent. Heavy-duty precision-coiled from a premium, high-tensile stainless steel alloy, the spring delivers exceptional structural elasticity, superior fatigue resistance, and total immunity to galvanic corrosion, rust oxidation, and aggressive pool sanitation chemicals like concentrated chlorine, bromine, and high salt levels under continuous operating line pressures up to 50 PSI. The physical dry product weight of this single Pentair Multiport Valve Spring is approximately 0.15 pounds (roughly 2.40 ounces, with a nominal packaged shipping weight of 0.20 pounds), providing an indispensable, highly resilient, and vital hardware replacement to ensure flawless water circulation control.