【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 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. < /p> 【Sustainable & 【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. 0.95 feet 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】-- Water tank applicable water of 1000 L, the size is: length 120 x width 100 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 tank well.(if