WeCooper Connector With Backdraught Shutter 100mm, Non Return 4-Inch

125mm Non Return Damper WeCooper Connector With Backdraught Shutter 100mm, Non Return 4-Inch Back Draught Shutter Prevents outside air and debree from coming through your duct system. 125mm plastic duct connector c/w backdraught shutter. Genuine DOMUS Easipipe parts in stock & ready for next day delivery Stop smells and prevent cold air coming through your extract fan or ducting. Prevent backdraft and maintain fresh air flow with the round ducting pipe connector with damper. Available in 100mm, 125mm, and 150mm sizes 125mm / 5 inch plastic ducting connector with inline gravity flap damper / backdraught shutter. Duct Backdraft Blocker 5 Inch / 125 Pipe Connector with Backdraught Produced and manufactured in Ukraine., 100% customer satisfaction guarantee.