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