Industrial Build Quality: Constructed to withstand high-duty cycles and thermal stress within the furnace cabinet

Are the connections on the DML 165S pure copper

"snapped" connection that simplifies field installation and service in tight mechanical spaces

The ceramic insulator includes a standard rib on the right edge

it provides reliable psig (and kPa) readouts for main air pressure or pilot-operated output signals from pneumatic controllers

Lennox 12W53 Pressure Switch Els PW 17895 Industrial Build Quality: Constructed toThe Lennox 12W53 Pressure Switch is a mission critical safety component engineered for HVAC draft verification in high efficiency gas furnaces. As an OEM Lennox replacement part, this switch is factory calibrated to actuate at 1. 52" WC (water column), ensuring the inducer motor maintains the precise static pressure required for safe combustion and proper venting. Designed with a durable SPST (Single Pole Single Throw) configuration, it prevents