WeCooper 150mm - 6 inch Connector with Backdraught Shutter, Non-Return Damper Flap to Connect Duct Pipe or Flexible Hose Pipe

Good for horizontal application as spring closure counteracts gravity where the free swinging tye would stay open. Spring force does not absorb too much of the fan flow. Easy to fit at end of the ducting just before the external louvre. Good quality and value considering.

Very well made, all dimensions correct, perform perfectly ( although I'm using it with AEG kitchen hood which in full trhotle pumps 700 cubic meters of air per hour, on lowest settings probably about 150 ) with it works perfectly.Spring holding back draft flap is quite strong, than if someone going to use it with not as such powerful units (like washing air dryers etc) might not be suitable, but it's just my guess, can't tell for sure, you need to baisycly try it.

Good product, done the job

Well made but simply not fit for purpose. The springs are too strong for either bathroom or kitchen extractors. With a lot of effort the springs can be weakened to allow for gravity to close the shutter when mounted vertically but not when mounting horizontally.

Well manufactured and might work for some application but won't open on my Bathroom extractor (inline fan 160m3/hr - 2500rpm - 20w) Opens about 60-70% on tumble dryer vent.

Perfect for my hood when fitted vertically. The spring is just the right strength and the rubber seal at one end fits perfectly into the hood fitting

Fits perfectly and mostly does its job but as others have said the springs are too strong so I recommend removing one of them being metal no doubt its durable and haven't really noticed any noise the seal is good and its as simple as pushing it in

Many reviews complain spring strength is too heavy. I would suggest maybe the extractor fan power is too low. I have Siemens i700…. even on lowest setting it opens the valve wide. No noise!! No banging… quiet. Recommended

Parfait et très silencieux

Passt exakt, tolle Qualität. Würden wir immer wieder kaufen

Acquistato per isolare odori provenienti dalla cappa della cucina, decisamente migliore di alternative in plastica e vale quei pochi euro in più. Si inserisce perfettamente nella condotta così da non dover modificarne la lunghezza. Le alette sono robuste ma non troppo pesanti, a livello minimo di ventola comunque si aprono. Dotato i guarnizione interna quindi dovrebbe (non ho ancora avuto l'occasione di verificare) avere un'ottima ermeticità.

Precies wat ik nodig had

Le produit n'est pas peinten blanc comme pourrait le laisser paraître la première photo. J'ai dû supprimer un ressort sur les 2 pour que le clapet puisse s'ouvrir au moment de la dépression d'air. Produit correct et fonctionnel.