![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 0 HP Air Blower Motor 0 HP Air Blower Motor [230v] [1 Spd] is engineered to perform reliably in air blowers applications The SPX1515Z2ES is a practical replacement for compatible Hayward spa systems that need renewed motor performance and cleaner long term operation and this Grid Controls M 310 version is a 25 amp model with a 2 inch slip connection using the 57 F4 3135 T02 reference A properly selected flow switch helps support cleaner installation and contributes to more dependable control response when flow conditions change
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