Reliance 401 Series, 2 in. shank electronic propane gas control valve, thermostat powered by 750 millivolt generator. Noticeable L-E-D indicator light blinks 1 time at 3 second intervals during normal operation. Increased temperature control and accuracy. Integral spark igniter, fits reliance standard 401 propane gas water heaters with electronic thermostat control. • Only use this control valve on a reliance water heaters with electronic thermostat gas valve • Originally manufactured with factory installed electronic gas control valve • 3/4" male thread fits reliance heater with 2" cavity R16 foam insulation • Compatible with AO Smith residential water heater brands • Compatible with AO Smith residential water heater brands •
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