Bayliss XL Greenhouse Window Opener Garden Watering hanging baskets and potted plants

hanging baskets and potted plants

Wooden Base 2ft 9 inches long x 2ft wide x 10 inches high (0

hanging baskets or plants in borders during cold nights

and it will never need treating again

the opener works automatically without daily adjustment

Bayliss XL Greenhouse Window Opener Garden Watering hanging baskets and potted plantsThis Bayliss XL is an extremely reliable automatic vent opener. The opener is activated 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. For roof vents weighing up to 12lbs, approx. 30" x 24" (76cm x 61cm). Can be clamped onto aluminium greenhouses no need for any drilling. If a