8ftx 6ft Walk-In Polycarbonate Greenhouse with Roof Vent -AS Prohibited by 10168437Features: Extend your growing season and protect plants from extreme outdoor temperatures with a large walk in greenhouse 0. 25" thick polycarbonate sheets to keep your plants secure Use the vent to control humidity inside Easy access latching door Hose ready rain gutters on the rooftop drain away rain and provide a source of water Water safe, easy to assemble aluminum frame, Shatterproof polycarbonate to let in light and stop sun damage from UV