Cookology Ducting Kit for Outside Extraction ' EXDK2M800. Ideal for both CIHDD800 and CIHDDBR800 models from Cookology. Cookology Essentials 70cm Chimney Cooker Hood Black LED 3 Speed. If you want to Vent or Duct the air outside, one end of the Ducting kit connects to the outlet on the Extractor Fan and the other attaches to a vent that is placed over the hole in your wall.
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