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BULB THERMOSTAT: TK-4012 PROPORTIONAL, UNITARY AVERAGING BULB THERMOSTAT, DIRECT ACTING, 30-90F HEATING, ADJUSTABLE 5 TO 25F/10 PSI
BULB THERMOSTAT: TK-4012 PROPORTIONAL, UNITARY AVERAGING BULB THERMOSTAT, DIRECT ACTING, 30-90F HEATING, ADJUSTABLE 5 TO 25F/10 PSI