Twin Wall - Diffused 6mm - Polycarbonate Sheets Color:Diffused The automatic ventilation window is

The automatic ventilation window is heat-activated

ensuring a cleaner and more durable solution

In addition

preventing shrivelling or withering of your plants

«Splitter» doors and manual windows are not included

Twin Wall - Diffused 6mm - Polycarbonate Sheets Color:Diffused The automatic ventilation window isCoverLite 6mm twin wall multiwall polycarbonate sheet provides high light transmission, UV protection, and great impact strength. 6mm Double Wall Polycarbonate Panels Available in "Clear" or "Diffused" Size of each sheet is 4' x 8' (4 feet by 8 feet) Weight of each sheet is 3. 18kg 7lbs Thickness is 6mm UV protection 1UV Price per sheet: $75 10 Year Warranty