Pentair Max-E-Therm/MasterTemp Air Flow Switch (42001-0061S) productsunlimited Useful when the original flapper

Useful when the original flapper is worn or damaged

AquaCal AutoPilot DIG-220 cover retrofit

especially in pools and spas where the drain area is clearly visible

Useful replacement for compatible multiport valve setups

This replacement is especially useful when the original drive parts are worn

Pentair Max-E-Therm/MasterTemp Air Flow Switch (42001-0061S) productsunlimited Useful when the original flapperHelp the heater verify proper airflow before ignition with this air flow switch for compatible Max E Therm and MasterTemp systems. The switch is part of the safety and control sequence, confirming that the combustion air system is operating before the heater continues through startup. A failing air flow switch may contribute to ignition problems, shutdowns, or diagnostic issues when the blower and venting system are otherwise serviceable. This