Hayward Filter Pump Base, for S164T | SX164C Spa Filter Cartridges Waterway Plastics produces the 3421021-1U

Waterway Plastics produces the 3421021-1U for reliable water movement in spa systems

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Hayward Filter Pump Base, for S164T | SX164C Spa Filter Cartridges Waterway Plastics produces the 3421021-1UWhat This Part Is Used For The Hayward SX164C is a pump base specified for the Hayward S164T sand filter system as listed. It provides a stable mounting base for the pump portion of the system so alignment and support stay correct on the equipment pad. This part sits under the pump mounting area. Why This Part Matters A cracked or unstable pump base can cause vibration, misalignment, and stress on unions and hoses. Over time that leads to leaks at