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.