【420D Superior Thickness Material】- Our IBC container cover is made of thick 420D polyester, in addition, the ultra-thick material is also very resistant to rain and snow. Even in sunny days, the cover 1000 liter tank provides excellent UV protection, reduces the growth of natural organic matter in sunlight and largely prevents algae growth 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 foot cover on the top of the tank cover, and the edge is velcro design. There is a zipper in the middle, which can be opened at any time, easy to put on. 【Perfectly Fits 1000 L IBC Tank】-- Applicable 1000 L water tank, the size is as follows : length 120 x width 110 x height 116 cm. The bottom has a drawstring, which can be tightened slightly to fit the 275 gallon IBC tank when in use, and which can also protect the