Bayliss MK 7 Vent Opener Garden garden trays Shelves fit securely into the

Shelves fit securely into the framework

With a planting depth of 1ft 3½in

Specifications

and customise your cage setup with confidence

Bayliss MK 7 Vent Opener Garden garden trays Shelves fit securely into theSuitable for use on nearly all greenhouses this Bayliss MK7 is an extremely reliable, British made, automatic vent opener. The bayliss Mk7 vent opener is operated by a stainless steel cylinder containing a mineral wax which expands with heat; this pushes a piston causing the vent to open. As the temperature falls the wax contracts and a strong stainless steel spring closes the opener. Bayliss guarantee their openers for 2 years but if anything should