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4" Brown Energy Saver Cowl

Stock Status: In Stock
Product Code: NVT ESG4BR
£7.75 ex vat £9.30 inc vat
The 4" energy saver grille has a unique patented design which can improve performance of a four inch extractor fan by up to 20%. Its designed as a direct replacement for standard fixed or gravity grilles which can flap around in the wind and cause unwanted noise.
Unlike its predecessor its design asssists extractor fans to reach full potential. The ESG4 virtually eliminates unwanted back draughts or blow backs. It is Part F compliant and suitable for use with all four inch fans and ventilation systems. 
Available in white and brown.