The Sesam Liberty Automatic Greenhouse Louvre Vent Opener

Opens and Closes Greenhouse Louvre Windows Automatically

This high quality autovent is proudly made in Denmark and is fully guaranteed for one year. Please do not confuse this item with any of the cheap far east copies which are not made to the same standards.


Product information:

  • Material: Aluminium
  • Temperature range, opening: 17 – 25 ºC
  • Opening force: 25 kg


Fits onto Louvre Vents to make your louvre automatically open when your greenhouse temperature increases and automatically close again when the temperature drops


Manufactured in Aluminium & Zinc coated steel for long trouble free life. Attractive silver finish blends well with traditional aluminium greenhouses.


We also stock many other quality Autovents from other manufacturers and side louvre vent openers as well as spare cylinders for all our autovents. 

Please look at our other items in our ebay shop


We are a specialist greenhouse supply and build company based in Yorkshire that sells nothing else but quality greenhouses and accessories. We do not sell hundreds of lines that we know little about, we have tried and tested everything we sell and are completely confident in our products and service

Many thanks for looking.


 DK - Automatisk jalousivinduesåbner.

FR - Ouverture automatique de Jalousie

DE  - Automatische lamellenfensteröffner für gewächshäuse