

The SHL506 Plenum Thermostat is a crucial component designed to regulate temperature in your furnace plenum. of 130°F and an Open Temp. of 170°F, this thermostat ensures optimal performance by shutting down the furnace when temperatures are too high, maintaining a safe environment. Compatible with L39-191 models, this thermostat is 1.88" wide, 2.8" high, and 1.87" long.