Hayward HeatPro/Summit Control Board (HPX51100122201) pumpmotors A gasket roll is useful

A gasket roll is useful because it allows the installer to cut the needed amount for the job

Part number 9-100-1014 helps confirm the correct replacement item

a 6 inch diameter

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

and part number are important

Hayward HeatPro/Summit Control Board (HPX51100122201) pumpmotors A gasket roll is usefulHeat 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,