from USA
to GB
in 9-15 days
At your doorstep by Jun 25  to Jul 01 with standard delivery


  • Designed to open your greenhouse window automatically.
  • It works by a wax within the cylinder of the opener expanding when it's hot, pushing a piston to open the window.
  • When it's cool, the was contracts and stainless steel springs close the window.
  • Suitable for aluminium or wooden greenhouses.
  • Supplied complete with easy to follow instructions for simple installation.
  • Imported from USA.
This heavy duty automatic window opener is ideal for exposed areas. It has a small hydraulic damper that causes the vent to open slowly but close very quickly. Ideal for use on light or conventional vents to stop 'twisting' and to prevent the vent from being wrenched open in high winds.

Bayliss MK7 Hydraulicheck Greenhouse Window Opener


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