Profile: Henry Quentzel Plumbing Supply Co. specializes in offering plumbing products. Our products include pipes, valves, fittings, water works, sprinklers, backflow, tools and meters. These products are used in industrial, commercial, water works, fire protection and HVAC. Our water works include backflow preventors, detector check valves, drain basins, rodding bands, link seals, dresser couplings and tapping valves.