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this draught stopper damper will sit on top of the exhaust fan in the ceiling/loft space
as well as preventing pests from entering the building
Product Data Sheet (PDS) is available from HERE
It is not recommended for external use and should not be left exposed to UV for longer than 4 weeks
The substantial increase in air flow as a result of a door vent can improve air quality and thus lessen the incidence of mold
Spring-loaded Draught Stopper Damper Size:150mm this draught stopper damper willA draught stopper damper is used with inline fans and flexible ducting to stop air flowing in the reverse direction. It has butterfly wings and a very light spring to minimize air leakage within the building envelope. Made of metal, this draught stopper damper comes in 3 sizes to suit: 100mm, 125mm & 150mm ducting. Sizing: 100mm diameter 4 inch 125mm diameter 5 inch 150mm diameter 6 inch
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