White-Rodgers 1F85U-42PR Thermostat 30067439-890 skin oils can lead to

skin oils can lead to hotspots and premature failure of the element

while the blue spirit-filled tube (non-mercuric) provides high visibility against the V-shaped aluminum scale without any hazardous material risks

The integrated internal relief valve (IRV) is standard

accommodate diverse system static pressure requirements

This is an SPDT (Single Pole Double Throw) control

White-Rodgers 1F85U-42PR Thermostat 30067439-890 skin oils can lead toThe White Rodgers 1F85U 42PR is a versatile 80 Series universal programmable thermostat engineered for high performance control across a wide range of HVAC configurations. Supporting up to 4 Heat 2 Cool heat pump stages or 2 Heat 2 Cool conventional systems, this unit provides the flexibility professional contractors require for diverse residential and light commercial job sites. It features a high contrast 5 inch backlit display for superior