Alton | Automatic Louvered Window Opener gable roof insulated building Their experts will refurbish the

Their experts will refurbish the pump as needed

4mm twin-wall polycarbonate to protect from direct sunlight

Simply filter and replace oil

and practical features that improve everyday usability

Spacious large hobby greenhouse: 116 sq ft

Alton | Automatic Louvered Window Opener gable roof insulated building Their experts will refurbish theLouver windows help the ventilation of a greenhouse. Adding an Alton Automatic Louver Opener will help regulate the airflow automatically when temperature changes. Automatic attachment for a Louvre vent, fits most louvres. Its fully adjustable to open over a range of temperatures between 59 77 degrees F. Some drilling is required to fit. Please note that an auto louvre CANNOT fit a louver which is directly left of an a frame when you look at it