Supremely insulated with 8 mm twin-wall polycarbonate panels, the BioStar Cold Frame is just as robust as a walk-in structure and retains heat better than glass. Three roof windows open independently to optimize airflow and humidity, and an automatic opener affixed to one roof panel will raise and lower as the temperature fluctuates so plants don't overheat. A drip-resistant coating prevents beads of moisture from falling on vegetation even when humidity levels climb.

• Easy to assemble and dismantles in 5 minutes to store during off-season
• Greenhouse Cold-frame kit offers 3 roof windows, 1 with an automatic opener and 2 with adjustable-height prop-up stanchions and 4 corner ground stakes.
• Constructed with well-insulated, weather resistant, UV resistant 8 mm twin-wall polycarbonate to retain heat even when outdoor temperatures dip below freezing. Panels guaranteed against yellowing for 10 years.
• Interior finished with unique no-drip coating to prevent condensation on plants.
• Made in Austria.
• Size: 59 in. W x 32 in. D x 20 in. H