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4 Inch Energy Saving Ventilation Grille

Brand:   National Ventilation
Code:   NVT ESG4W
£9.67 inc vat
This four inch white ventilation grille is a totally new design which both saves energy and improves the efficiency of your bathroom fan. Whilst preventing back draughts, its clever design greatly reduces the resistance normally offered by standard gravity grilles. This means that your extractor fan is not fighting against air pressure in the duct.

This energy saving grille should be used in conjunction with a powerful bathroom fan and standard four inch flexible aluminium ducting.

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