Store category Sign Up Now ! You may also like 20'x10'X7' Super Huge Greenhouse Walk-In Polytunnel Steel Frame Dome w/ Cover Product Description Use greenhouse at low temperatures to protect seedlings and grow in a relatively warm, humid environment. This requires that greenhouse have a certain light transmittance, allowing the sunlight to reach the tunnel. Our greenhouse has been tested over and over again, choose 140g/m transparent PE material with green checkers to provide the best artificial environment for seedlings. Specification Size: 20'x10'x7'Color: GreenWindow: 12 roll-up windowsMaterial: Steel tube; galvanized anti rust steel pole Cross bar with ground bar.Green PE mesh fabric.Roll-up double zippered door with metal zip heads.Roll-up windows with screens. Package include 1X Greenhouse Frame1X Green CoverAll fittingsInstallation notes Features Light transmittance >= 80%. Transparent plastic cover protects plants while allowing vital sunlight to pass through.Full closed cover maintains high humidity levels and temperature control for growing tropical plants, vegetables, fruiting plants and herbs.Powder coated steel frame provide and middle rails provide additional stability for this greenhouse.Heavy-duty, powder-coated, steel frame is resistant to rust, corrosion, chipping, and peeling.Zippered roll-up door provides easy access to the inside and can be attached to the top to stay open.Made of polyethylene, cover is UV protected, Wind-proof and Rain-proof.It can be set up easily.Q&AQuestion:Is this plastic reinforced with a green mesh material?Answer: Yes，it is. Question: With the type of cover that is on it, does it let enough light in to actually grow in the winter month and start seeds. How thick is the plastic? Is that reinforcement mesh molded into the plastic? How air tight is it for keeping heat in winter months?Answer: The cover is a bonded multi thick plastic. The mesh is between 2 layers of clear poly. It lets through plenty of light. The side flaps are velcro and when shut wont let much air in or out. the door has zippers. It also has extended walls so you can put bricks or boards down to seal the bottom. As far as winter goes, you might want to put a composter or other heat source in there. Payment Delivery details Terms of sales About us Contact us Payment Paypal only. Delivery details We make the delivery within 2-5 working days after the full payment has been received. If you do not receive your products within the proper time, please contact us.We ask you to check whether your ordered products have arrived in perfect condition, before signing the delivery form, so please open and check your order when you receive it. If you are not satisfied with the goods upon delivery, please do not sign the delivery form and contact us ASAP. All items and parts of the product must be checked for any damage prior to assembly. Terms of sales We are in the United States local delivery of ebay seller, warehouse in CA and KS. About us We focus on improving service and product quality to bring new experience to customers. Contact us Welcome to contact us from Monday to Friday, 9:00am to 5:00pm. Feedback