Profile: Guenther Supply, Inc. carries a product line of pipe, valves and fittings. We offer actuation services for ball and butterfly valves. Custom hose assemblies are done at our warehouse. Our products include pipe & tubing, valves, pipe fittings, hangers & strut products, hose & hose fittings, pipe insulation & jacketing, heating specialties, pumps, piping specialties, chemicals and tools.