【420D Superior Thickness Material】- Our IBC container cover is made of 420D thick polyester, in addition, the ultra-thick material is also very resistant to rain and snow. Even in sunny weather, the 1000 liter tank cover provides excellent UV protection, reduces the growth of natural organic matter in sunlight, and largely prevents the growth of algae in storage tanks. 【Durable & Double-Layer Stitched Construction】-- Our IBC tank covers are extremely durable and rot-resistant, and the double-stitched edge construction is more durable and tear-resistant. There is a 11.4 inch/0.95 feet cover on the top of the tank cover, and the edge is a velcro design. There is a zipper in the middle, which can be opened at any time, easy to put on. 【Perfectly Fits 1000L IBC Tank】-- Applicable 1000L water tank, the size is: length 120 x width 110 x height 116 cm. The bottom has a drawstring, which can be slightly tightened to fit the 275 gallon IBC tank when using, and can also protect the tank