Insulated Cover for 70 x 140 cm Grow Tents for Winter – Thermal Liner with Insulation Layer, Observation Window, and Ventilation Holes, Optimized for Heat Retention and Energy Efficiency. New Product Pre-sale. Size: 2.3' x 4.6' x 6.5' (70 cm x 140 cm x 200 cm). Our design team fully understands our customers' winter insulation needs. After testing various stitching methods, fabrics, and colors, we developed this innovative insulated cover specifically for Spider Farmer Black grow tents. The openings are designed for easy ventilation and cable management, and even with all grow tent zippers fully closed, users can still easily access the observation window. Testing shows that while the cover may slightly increase humidity inside the tent, using it with a heater effectively reduces humidity due to the warm, dry air. The insulating cover also effectively retains heat, helping you save on electricity costs. Energy savings: The cover provides excellent insulation, reducing the need for higher heat settings. You'll use less electricity to maintain the temperature over the same period. Noise reduction: Adding this insulating cover significantly reduces equipment noise inside the tent, creating a quieter environment around your grow tent. Three-layer construction: Inner layer: Aluminum foil for insulation; Middle layer: High-quality thermal cotton; Outer layer: Soft, splash- and dust-resistant Oxford fabric. Easy installation and aesthetic design: Simply slip the cover over your tent for quick and easy installation. The stylish gray design also adds a touch of style to your indoor décor. Perfect fit for Spider Farmer grow tents: This insulating cover is designed to fit the black Spider Farmer grow tent perfectly. Please note that it does not include support poles. It simply acts as a cover that fits over the outside of your grow tent, much like putting a coat over your grow tent.