Mô tả
EPGB
EXTERNAL PLASTIC GRILLE WITH BACKDRAFT SHUTTER
The EPGB backdraft shutter is designed for external mounting. It is made from impact and UV resistant PVC. Shutters open when the fan is running and close when it is off. This allows air to be ventilated into the atmosphere from the inside of a building, while stopping outside air and pests from entering the building when the fan is off.
Available in 100, 125, 150 & 200mm normal duct diameter.
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