Twin Wall - Opal 6mm - Polycarbonate Sheets NatureTech USA This product comes strictly as

This product comes strictly as the extension for the Planta Sigma and Planta Urban models

The number of windows recommended depends on the size of the greenhouse

allowing your garden to flourish year-round

This automatic ventilation window is a perfect complement to your Planta Farmer Greenhouse

CoverLite® 6mm twin wall multiwall polycarbonate sheet provides high light transmission

Twin Wall - Opal 6mm - Polycarbonate Sheets NatureTech USA This product comes strictly as6mm LEXAN THERMOCLEAR: LEXAN THERMOCLEAR 6mm twin wall multiwall polycarbonate sheet offers excellent light transmission, good thermal insulation, and advanced UV protection in a lightweight sheet. 6mm Double Wall Polycarbonate Panels Available in "Clear", "Bronze" or "Opal" 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 + DRP Price per sheet: $90 10 Year Warranty