150mm to 125mm (6" to 5") White Plastic Ducting Reducer

200mm to 150mm (8" to 6") White Plastic Ducting Reducer

Verplas 220mm x 90mm to 204mm x 60mm Air Brick Reducer White Rigid Duct

204mm x 60mm 45 Bend Horizontal Rectangular Duct

160-150mm Metal Duct Reducer Round Reducer Duct Fitting Pipe Increaser Reducer Galvanized Steel

Round Ducting Reducer 150mm to 100mm for Extractor Fans Tumble Dryer Cooker Hood and Ventilation Units

204mm x 60mm 90 Bend Vertical Rectangular Duct

125mm to 100mm (5" to 4") White Plastic Ducting Reducer

Verplas 150mm x 350mm Length Rigid Ducting

110mm x 54mm Rigid Ducting End Cap

204mm x 60mm 90 Bend Horizontal Rectangular Duct

150mm (6") to 100mm (4") Round Duct Reducer. One Piece Reducer Takes Less Space

Flat Plastic Duct Air Brick - 110x54mm - Terracotta

Round Ducting Reducer 200mm to 150mm for Extractor Fans Tumble Dryer Cooker Hood and Ventilation Units

204mm x 60mm 45 Bend Vertical Rectangular Duct

Round Ducting Reducer 125mm to 100mm for Extractor Fans Tumble Dryer Cooker Hood and Ventilation Units

Round Ducting Reducer 80mm to 150mm for Extractor Fans Tumble Dryer Cooker Hood and Ventilation Units

204mm x 60mm Tee Piece Rectangular Duct

204mm x 60mm to 110mm x 54mm Reducer / Adapter

Round Ducting Reducer 150mm to 125mm for Extractor Fans Tumble Dryer Cooker Hood and Ventilation Units