Anvil® offers the largest selection of name brand fittings which include Anvil malleable and cast iron fittings, forged steel fittings and unions, universal forged steel Anvilets, Catawissa™ hammer unions and J.B. Smith™ swage nipples and bull plugs. Also included are Beck® welded pipe nipples and couplings along with Anvil® seamless pipe nipples. All Anvil® pipe fittings are manufactured in accordance with ASME regulations and conform to federal specification.