
Victory White Metal Company has manufactured lead-free plumbing solders, leaded solders, pewter, babbitts, anodes, and lead castings since 1920 from Cleveland, Ohio. Its NSF/ANSI 61-certified lead-free plumbing solders meet Safe Drinking Water Act requirements and are widely used for copper potable-water systems and HVAC.

Zilmet USA is the North American arm of Italy's Zilmet (founded 1955, Padua), the world's largest manufacturer of expansion tanks and a global leader in heat exchangers. In 2025 Zilmet USA opened a 150,000-sq.-ft. HQ and manufacturing plant in Georgetown, South Carolina, producing thermal, hydronic, solar, and well-water expansion tanks.

Zoeller Pump Company, founded in 1939 and headquartered in Louisville, Kentucky, is a family-owned manufacturer of sump, sewage, effluent, grinder, and dewatering pumps for residential, commercial, and municipal markets. Its signature "meatball" impeller mark identifies a long-trusted brand in basement water-removal and wastewater pumping.

Zurn Industries, founded 1900 and headquartered in Milwaukee, Wisconsin (under parent Zurn Elkay Water Solutions), is a leader in engineered commercial plumbing and drainage. Products include floor drains, trench drains, backflow preventers, grease interceptors, flush valves, sensor faucets, and hydrants for commercial and institutional buildings.