Cover Ex Premium Spa Cover Lifter. The Cover EX does exactly what you want a cover lifter to do…work, and work well. The surprising ease with which the Cover EX helps remove your spa cover will impress, and will undoubtedly lead to more soaks in your hot tub. Reinforced aluminum construction ensures that the EX will perform in any backyard environment and requires only 12″ of operational clearance. Backed by a comprehensive 5 year warranty.