110 x 54 Flat Rectangular Plastic Ducting Backdraft Shutter
Passive Wall Vent Condensation Mould & Humidity Control Background Positive & Negative Air Ventilator with Filter & Draft Excluder Kit
204x60mm - Flat Plastic Rectangular Ducting Horizontal Adjustable 45 Degree Bend
Flat Plastic Ducting Transformer T Piece 110x54mm - 100mm
