This pool cover protects any 7.3 x 3.75 m oval pool against dust,dirt and leaves. Thanks to its thickness of 180 microns and UVA resistance, it will ensure you many summers of use. The bubble structure will also help to warm up the water. It ensures good service and long usage. And it is recommended for use during the summer only. The bubble pool cover is manufactured by Gre, Europe's largest pool builder.