Wolverine Brass is known by professionals for its ceramic disc cartridge technology that carries a 100-year, drip free warranty. Finishes, other than oil-rubbed bronze, are also guaranteed to be free of defects for 100 years. Made in the USA, Wolverine products are only available through licensed plumbers. Surveys by the plumbing industry trade journal, Plumbing and Mechanical Magazine, rate Wolverine Brass faucets as #1 in reliability. Check out their product showcase.