Poly 6 Mil - Anti-Condensate - 48' x 50'Give your plants the benefit of a long lasting covering that includes excellent light transmission, UV protection, and tensile strength durability. Keep the plants environment warm and maintain better heat distribution without heat buildup or stress and reduce your energy costs in the process. There are many benefits to having a greenhouse with a Duraline cover, such as year round gardening, plant protection, and an optimum environment for growth.