"Bought Manrose Flap Vent Brown 160 x 160mm Product Code: 94320 £2.99 to replace a ten year old broken one which was used for a vented tumble dryer. Just needed to drill one screw hole to secure it to the existing fitting, Flaps open and close smoothly, I have not noticed and draught coming from outside when the tumble dryer is not in use."
"So I fitted one of these to vent my extractor hood, and for the first few weeks I thought I'd hit the jackpot! It was cheap, fitted and worked perfectly, almost completely eliminated the drafts coming from the extractor hood! However not all was as it seemed, one evening there was a mild breeze, (not enough to blow an OAP over, but enough to disturb some autumn leaves) and the flap came to life! Chatting and rattling it's flappy little face off! Now this would be less of a problem but like many modern family's we have embraced 'open plan living' so our living room, dining room and kitchen are one, and so this noisy little thing has single handedly ruined any relaxation time I might look forward too! Nay, I exaggerate, after 3 or 4 days of constant noise I un-clipped the flaps and decided to put up with the cold draft, but as I mentioned, open plan living, not ideal!"