Flower House FHXUP-GT Gro-Tec Cover for Harvest Greenhouse, X-Up Pro UV Resistant and 100-Percent Waterproof More Beneficial for Plant Growth than Clear Glass or Plastic Reduces Excess Light on Upper Leaves by Increasing the Amount of Light Reflected onto Lower Leaves Semi-Opaque Material Approximately 3-Mils Thick This Cover Fits Pro and Deluxe Models of the Harvest House