Honeywell 3/4″ direct ignition dual automatic combination valve

Honeywell 3/4″ direct ignition dual automatic combination valve, 24vac, two stage, standard opening, 1.7″wc low 3.5″wc high 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, 3/4″x1/2″ reducer bushings (2)