The Hayward Spring (SPX0603S) is the OEM replacement spring for Hayward VariFlo and SelectaFlo multiport filter valves, maintaining proper rotor tension and ensuring positive position engagement across all valve settings. This spring holds the rotor assembly under the correct load so the valve locks firmly into each operating position — Backwash, Filter, Rinse, Waste, Recirculate, and Closed — preventing intermediate positioning and the flow leakage that results from a worn or broken spring. Specifications Hayward Part Number SPX0603S Quantity Included 1 UPC 610377034524 Fits Into Brand Equipment Line Model / Part Number Hayward VariFlo Side Mount Valve Assembly – 1 1⁄2" FIP (Open Line) SP0710XALL Hayward VariFlo Valve Assembly – 1½" NPT (Open Line) SP0710XR50 Hayward VariFlo Thread Mount Valve – 1 1/2" FIP (Open Line) SP07121 Hayward VariFlo Side Mount Valve Assembly – 2" FIP (Open Line) SP0715ALL Hayward VariFlo Valve Assembly – 2" NPT (Open Line) SP0715XR50 Hayward VariFlo XL Control Valve – 2" FIP (Open Line) SP071620T Hayward VariFlo Top Mount Valve Assembly – 2" FIP (Open Line) SP071621 Hayward SelectaFlo Valve Assembly – 2" SKT (Open Line) SP0740DE Compatibility is based on Hayward parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Poolaroo Pro Tip If your multiport valve handle is difficult to rotate, no longer clicks firmly into position, or drifts out of a selected setting under pressure, a fatigued or broken spring is the likely cause. When servicing the valve, inspect the rotor O-ring at the same time — replacing both together restores full valve function and avoids a second disassembly shortly after.
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