Hayward HeatPro/Summit Control Board (HPX51100122201) pumpmotors a 6 inch diameter

a 6 inch diameter

and part number are important

The Raypak 105A pressure switch tube is designed for compatible heater applications where the supported pressure-sensing connection path needs replacement

A bulkhead fitting in this style is useful because it restores an important connection point in the jet assembly while also maintaining a more decorative finished look at the spa surface

Designed for use in control systems service and repair applications

Hayward HeatPro/Summit Control Board (HPX51100122201) pumpmotors a 6 inch diameterHeat pump control issues often trace back to the electronic board that manages operation, sensing, and system response. This Hayward HeatPro Summit control board is a replacement component for compatible heat pump models requiring part HPX51100122201. A functioning control board helps coordinate heating cycles, equipment safeguards, and user command response. If the existing board has failed due to age, electrical damage, or environmental exposure,