Thermostat, Approx Range 80-200 F, 36" Cap. 3 5/8" Bulb, # Rpc13-135 Replaced By Inter-Metro Rpc13-234, Same Except, Longer Cap, Now 36"., Inter-Metro C5 1 Series / 3 Series 120V, C5 1 Series / 3, Series 220-240V. Knob = Ap#8009315, Intermetro C175 And C200 Series. Knob = Ap# 221340
