6"/150mm TO 5"/125mm ROUND PIPE REDUCER VENTILATION DUCTING ADAPTOR WHITE

Round Duct Reduction for Extractor Hood 120mm / 100mm Ducting Pipe Reducer ROK

Round To Square 4" 100mm 110mmx54mm Flat Ventilation Ducting Fan

Ducting 110x54 Flat to Round Elbow Bend Kitchen Ventilation Extractor Fan Heat

Circular Mesh Outlet Bird Grilles, Metal Ducting, Flexible Duct, Extractor Fans

Airvent 404138 Duct Adaptor Round to Rectangle Ducting Ventilation 204mm x 60mm