Rigid Duct 90 Degree Bend Diameters: 4, 5 or 6 90º Horizontial Bend is part of the rigid duct round range and is designed to achieve the highest possible energy efficiency from our ventilation appliances. Domus rigid duct is manufactured from exacting tolerances to virtually eliminate air leakage and reduce pressure drop. Allow you to change the direction of duct runs Available as horizontal and vertical and 90° bends Manufactured to exacting tolerances, which virtually eliminates air leakage and minimises pressure drop 4 Rigid Duct 90 Deg Bend Domus EasiPipe 100 is suitable Bathroom, Toilet and Utility room applications Free Area 7,850mm2 5 Rigid Duct 90 Deg Bend Domus EasiPipe 125 is suitable for Bathroom, Toilet, Utility room, Kitchen and Whole House Applications. Free Area 12,266mm2 6 Rigid Duct 90 Deg Bend Domus EasiPipe 150 is suitable for Kitchen, Commercial and Whole House Applications Free area - 17,26