3/4" direct ignition dual automatic combination valve, 120vac, single stage, standard opening, 3.5"wc regulator setting, straight through body pattern, 30000-415000btu, 1/2# pressure rating, 1/8" pressure tapping with plug, ffor use with hot surface, direct spark systems or gas fired appliances, includes lp conversion kit, 1/2"x3/8" reducer bushing (1) , 3/4"x1/2" reducer bushings (2)