This 60° - 250° Thermostat w/ Dial is a direct replacement component. It senses temperature and cycles the heating or cooling circuit to hold the set point. Replacement is usually called for when you are seeing temperatures that overshoot or undershoot the dial, or a unit that runs continuously or not at all.

Check the number on the part you are replacing, or your unit's model number, against the lists below before ordering.

Supplied as a single replacement unit.

Type - D1/D18 Temp 60-250 Bulb 3/8" X 4-1/2" Cap 60" Mount Std. Vert. Dial Included Dial A1552 OFF-250-60 Standard Duty Dial A248, K-114, OFF-250-60 Heavy Duty Dial A246, OFF-10-1 D1'D18 T'stat, DPST For AC Operation, 4 Terminal Used IN Applications Requiring High Current. Capillary Clamp: Snap-in, Capillary Clamp: Clip-on Bulb Clamps, PKG/6, A1067, W-1130, Calibration Screw Driver Capillary Insulation Per Foot: L307, Z-127, Robertshaw Acroflex Insulation Sleeving Fits Bulbs Up To 3/8" Diameter.

Ordering by part number is the most reliable way to get the right part.