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GardenersDream Bayliss Mk7 Greenhouse Automatic Ventilation Window Opener Or Replacement Tube

  • From £17.59
  • RRP £21.99
Item out of Stock | Usually dispatched within 24 hours
1+ 5+ 10+
£18.99 £18.49 £17.59
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  • Suitable for opening greenhouse roof windows 76cm x 76cm weighing up to 26lbs
  • Designed to open the window automatically when temperatures increase
  • Works by wax within the cylinder of the opener expanding when it's hot, pushing a piston to open the window.
  • When it's cool the wax contracts and stainless steel springs close the window.
  • Suitable for aluminium or wooden greenhouses

Provides a maximum opening distance of 12 inches (30cm) and can be set to start opening at approx. 55F (12o). Supplied with full fixing kit and instructions. The standard Mk 7 autovent is supplied in a satin anodised finish but is also available epoxy powder coated white, green or brown.

Designed for aluminium or timber framed vents measuring up to 60cm square (2ft square) lifting a load of up to 6kg (14lbs).

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