"Description Snap Action Thermostat, Type Cool Only, Control Range 50-90 Degrees Fahrenheit, Anticipation Range Cool Fixed, Switch Action SPST, Sub Base Not Required, Height 4 1/2 Inches, Depth 1 3/16 Inches, Width 4 1/2 Inches, Color Light Gray, Application 24 VAC, Economy Model, For Gas, Oil, Electric TECHNICAL SPECIFICATIONS Anticipation Range (Amps): Cool: Fixed Application: 24 VAC Color: Light Gray Control Range (F): 50-90 Depth (Inches): 1 3/16 Height (Inches): 4 1/2 Width (Inches): 4 1/2 Subbase: Not Required Switch Action: SPST Switching, Fan: None Type 2: Cool only Unit of Measure: 1 Manufacturer: WHITE RODGERS Mfg. Model#: 1C21-1;CAR3TZ45. "