A leading supplier of plumbing fittings, McAlpine comes with a variety of high-quality and competitive products to suit all plumbing solutions. The water seal bath trap is an essential element of the basin's plumbing that keeps the bathroom hygienic and odour-free. The extensive range of products now include traps, WC connectors, shower and floor gullies, air admittance valves, roof flashings and waste outlet fittings.