Honeywell Combination Gas Valve, 24 Vac, 1/2″ x 1/2″, Two Stage, Direct Ignition, 1/2 Psi Pressure Rating, Standard Opening, Straight Through, 1.7″ WC Lw Regulator Setting, 3.5″ WC High Regulator Setting, Natural Gas, 140,000 Btuh @ 1″ WC Pressure Drop, Includes 6″ Wire Harness and LP Conversion Kit