Hayward Adjustable Collar Round | SP1084P1 Transformers Air pressure switches can vary

Air pressure switches can vary by blower configuration and pressure setpoint — installing a switch with an incorrect setpoint will cause the heater to either fail to fire or run outside its designed operating parameters

holding tank

Hayward Universal H-Series Low NOx pool heater models: H150FDN

Replacing this board with the OEM part restores correct fan sequencing and ensures the heater's safety interlocks function as designed

Concentrated and economical

Hayward Adjustable Collar Round | SP1084P1 Transformers Air pressure switches can varyThe Hayward Adjustable Collar Round (SP1084P1) is the OEM replacement extension collar for Hayward Auto Skim series skimmers, designed to accommodate deck height variations around the skimmer opening. This round adjustable collar mounts between the skimmer body and the deck surface, providing the vertical adjustment needed to bring the skimmer flush with finished pool decking. Replacing a cracked, broken, or missing collar restores a clean, secure fit