Anvil International LLC manufactures and distributes pipe fittings, pipe hangers and piping system. It manufactures piping system components with applications in commercial, industrial, mechanical, fire protection and oil and gas end markets. The firms products include gruvlok grooved couplings, fittings, flanges and valves, malleable iron fittings and unions, cast iron fittings and flanges, forged steel fittings, unions and couplings, seamless pipe nipples, beck welded pipe nipples, pipe hangers and hardware, seismic sway bracing, strut and strut fittings, engineered pipe support, JB smith swage nipples and bull plugs, catawissa hammer unions, merit drop nipples and tee-lets and SPF import products. Its brands include Anvil, Gruvlok, SPF / Anvil, Beck, Anvil-Strut, J.B. Smith, Merit, Catawissa, Anvil EPS, Mueller and North Alabama Pipe. The company was founded in 1850 and is headquartered in Exeter, NH.