The PROTECH 42-24195-03 is a high-quality air pressure switch designed to monitor draft pressure in furnaces. Rated at 0.30” WC (Water Column)
The PROTECH 42-24195-03 is a high-quality air pressure switch designed to monitor draft pressure in furnaces. Rated at 0.30” WC (Water Column), this switch ensures safe operation of HVAC systems by verifying proper air flow before ignition. It’s a direct OEM replacement part compatible with Rheem, Ruud, and other brands. Mounting bracket included for easy installation.
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