Triple Wall - Opal 16mm - Polycarbonate Sheets Thickness:16mm you can achieve professional-grade ventilation

you can achieve professional-grade ventilation quickly once professional electrical connections are made

it helps the greenhouse withstand moderate to severe weather

Noise Reduction: Includes a tie bar to stabilize the louvers and prevent flapping

this unit is designed for permanent electrical integration and is compatible with 115/230 Volt power supplies

The Planta Sigma 20 (Gen III) is an urban gardener's dream come true

Triple Wall - Opal 16mm - Polycarbonate Sheets Thickness:16mm you can achieve professional-grade ventilation16mm LEXAN THERMOCLEAR: LEXAN THERMOCLEAR 16mm triple wall polycarbonate sheet provides outstanding impact performance, thermal insulation, high light transmittance, and 2 sided UV protection. 16mm Triple Wall Polycarbonate Panels Available in "Clear", "Bronze" or "Opal" The size of each sheet is 4' x 8' (4 feet by 8 feet) Weight of each sheet is 3. 18kg 7lbs Thickness is 16mm UV protection 2UV Price per sheet: $190 10 Year Warranty