The Dura-Gel® SP III (Skin Protection) wheelchair cushion reduces surface pressure through the use of non-aqueous Dura-Gel® placed in three pressure zones. The cushion uses a high-density base foam in combination with a visco-elastic topper for added comfort and also positions the user with a moderate slope from front to back. For use with moderate risk patients Reduces tissue interface pressures at critical points Features a specialized Dura-Gel® center layer surrounded by comfortable foam layers on the top and bottom of the cushion The soft, stretchable lightweight cover reduces shear/friction and is fluid resistant and has a strap at the back to secure the cushion firmly to the chair Accommodates a wide range of body shapes, sizes and weights Maximum Weight Capacity 350 lb (158.76 kg) – EVENLY DISTRIBUTED Lightweight 18 month limited warranty Designed to meet HCPCS Code E2603-E2604 (E2603 for Sizes < 22"; E2604 for Sizes ≥ 22") Latex Free Dimensions: 18 X 16 X 3"