This prevents the bulb from becoming stuck in the well

maintaining the safety circuit's integrity even under varying draft conditions

meeting the identical wattage and base requirements

Enhanced System Safety: Provides a redundant thermal failsafe by interrupting the ignition or heating cycle if temperatures exceed the 175°F design limit

MARS 43335 Pressure Switch This prevents the bulb fromThe MARS 43335 Pressure Switch is a high performance, fixed setting control engineered for demanding HVACR applications, particularly those utilizing R410A refrigerant. This high pressure cut out switch features a SPST (Single Pole Single Throw) normally closed contact configuration, calibrated to "open on rise" at 600 PSI cut out and automatically reset (cut in) at 475 PSI. Built with a tamper proof, hermetically sealed sensor, the 43335 ensures long