The 407952 Maestrini BSP pipe manifold is made from brass. The 407952 Maestrini plumbing manifold features two 1"bsp threaded ends (1 x 1" BSP male and 1 x 1" BSP female) and 2 threaded male inlet / outlet connections for 1/2" BSP pipes.
Please Note: All fittings used for through hull applications must be correctly electrically bonded to ensure protection from electrolytic corrosion. Brass is susceptible to dezincification and is not recommended for below waterline through hull applications.