The Domus ventilation range is manufactured to exacting tolerances. This virtually eliminates air leakage and minimises the pressure drop associated with ducting, lowering the system's energy consumption. BES stock their full range including MegaDuct, EasiPipe, Polyvent,Supertube, and system 100. All the bends, tubes, vents and fittings you need. BES also sell complete ducting kits for cooker hoods and tumble dryers.