![Grid Controls M-310 Flow Switch [25A] [2](https://cdn.shopify.com/s/files/1/1751/9347/files/26-340-2015_XL.jpg?v=1715147606)
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Grid Controls M 310 Flow Switch [25A] [2" Slip] (57 F4 3135 T02) topsideoverlays The SPX1515Z2ES is a practical The SPX1515Z2ES is a practical replacement for compatible Hayward spa systems that need renewed motor performance and cleaner long term operation That makes it a practical targeted replacement A properly selected flow switch helps support cleaner installation and contributes to more dependable control response when flow conditions change This type of part is especially useful when service work is being performed on heaters or related systems that depend on accurate flow confirmation for protection and control
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