1. Upgraded Style: Add a drawstring to strengthen the protection function, no need to worry about the wind. The 300l tank cover is made of 420D Polyester. The protective cover is also durable and rot-proof. 2. Protection Function: Our 300l tank cover can protect your outdoor IBC storage tank from harmful ultraviolet rays, antifreeze and extend the service life of the IBC storage tank. 3. Practical: With the cut-outs and tarpaulin flaps, it is possible to use the IBC tank without having to remove the cover. 4. No algae formation: With the help of the 300l tank cover, the formation of algae in the storage tank is largely avoided. It can protect the IBC storage tank and its contents. 5. 300L Tank Cover Dimension: Suitable for a 300L tank (approximately 81*61*100cm)