which allows for internal servicing or diaphragm replacement without pumping down the system or breaking pipe connections

extending the interval between filter change-outs and reducing labor costs

Using this assembly on an LP system without proper conversion can lead to dangerous operational conditions

To correctly seat the probe and flange

MARS 33420 Tstat 320819-301 which allows for internal servicingThe MARS 33420 is a high performance commercial refrigeration thermostat designed for precision temperature control in demanding environments. This SPST fan delay thermostat features a fixed 35F open and 55F close configuration, making it an essential component for defrost termination and evaporator fan motor control. Built with a 1 inch fully encapsulated disc, this Klixon style switch ensures moisture resistant operation and long term reliability in