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This very simple yet clever arm will automatically open the window as the day warms up, and close it in the evening as the day's heat fades away. You can easily adjust the vent by hand to control how warm you want the greenhouse to get before the vent opens/closes.
Comes complete with fittings and instructions.
This is suitable for use with any of the aluminium frame Gardman greenhouses except the 6x4 model.
"the vents are excellent vents and work well, would really recommend them. A bit fiddly to fit but apart from that no problems."
Reviewed Tuesday, 8 May 2018
"Have not bought this item. If anyone else has bought this using my details, I want the money returned."
Reviewed Saturday, 1 July 2017
"Have just replaced my old ones that lasted approx. 25years & when we do get a spell of sunshine you do not have to worry about your greenhouse temperature as the windows open automatically- another brilliant idea !!"
Reviewed Wednesday, 29 June 2016
"worked straight away"
Reviewed Sunday, 26 June 2016
"Easy to fix & works well."
Reviewed Thursday, 9 June 2016
"Aftera small modification to the frame of my greenhouse, everything worked."
Reviewed Wednesday, 18 May 2016
"All good as expected"
Reviewed Tuesday, 22 September 2015
"Item was easy to fit and works perfectly"
Reviewed Sunday, 7 June 2015
Reviewed Wednesday, 27 May 2015
"Easy to fit and works perfectly"
Reviewed Saturday, 23 May 2015