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Prevents Air Infiltration: Airtight seal prevents air leaks into the filtration system
Includes (2) coupling nuts
SKU: 640142
Compatible Fuel Types: Natural Gas (NG) & Propane (LP)
External Plate Size: Approx
Pentair MasterTemp Pool Heater Air Flow Switch | 42001-0061S Heater Parts Prevents Air Infiltration: Airtight sealPentair 42001 0061S Air Flow Switch Product Overview The Pentair 42001 0061S is an OEM air flow (vacuum) switch used in Pentair and Sta Rite heaters to verify proper airflow before ignition. It ensures the combustion blower is operating correctly, allowing the heater to start safely and preventing ignition faults caused by insufficient airflow. Key Features OEM replacement air flow switch for select Pentair and Sta Rite heaters. Monitors blower air
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