The ROHO Heavy Duty Cover protects ROHO cushions from rough wear and tear, fluids and the degenerating effects of poor quality ozone. This new cover will help protect the cushion from rugged use and every-day wear and tear. It is also ideal for protection against incontinence with its fluid-resistant material and durable construction. Although this new cover is ruggedly designed, it still allows for the benefit from the therapeutic skin protection of the ROHO cushion. The Heavy Duty Cover design allows for easy access to ROHO cushion valves and the ISOFLO Memory Control on SELECT Series cushions with a double pull zipper. Sizes available to fit most ROHO cushion models. Warranty 6 Month Limited Warranty