Malvina Shutter / Door Accessory (Set of 2)

This window accessory set, consisting of two automatic window openers, can be easily and quickly installed on the windows of common summer houses and greenhouses. Depending on the temperature, the piston of the cylinder moves and opens or closes the window. The opening angle can be freely adjusted by turning the cylinder to achieve the right ventilation for the interior. You will receive two automatic window openers including fixing material for wooden and aluminium greenhouses.