Cushion Cover only Roho HP Heavy Duty 20 x 18 Pen Pencil Aids Quick release treaded PU rear wheels 01804 Quick release treaded PU rear wheels Improves individual's transferability by lowering the front and middle of the cushion Û inches while keeping its strong positioning capablity by deepening the leg troughs * The lower height also contributes to a greater feeling of security in the chair particularly if the cushion is being supplied as a replacement cushion * The non adjustable ROHO AIR FLOATATION air insert built into the cushion under the ischials has been enhanced to provide greater cell to cell air transfer improving the immersion capability of the cushion * The overall foam density of the cushion has been reduced by 25% allowing the cushion to conform better to the individual's physiology * 24 month warranty * No adjustment of the air cells is required * The cover is 100% PVC free and comes with a full depth zipper which helps to provide enhanced fluid resistance * Weight limit: 300 lbs * Protects ROHO cushions from rough wear and tear fluids and the degenerating effects of poor quality ozone * Helps protect the cushion from rugged use and every day wear and tear * Protects against incontinence with its fluid resistant material and durable construction * Although this new cover is ruggedly designed it still allows for the benefit of the therapeutic skin protection of the ROHO cushion * Allows for easy access to ROHO cushion valves and the ISOFLO Memory Control© on SELECT Series cushions with a double pull zipper *