Single Compartment Cushion 4 Air Cells Provide Prevention And Healing Relief From Ischemic Ulcers (pressure Sores) Maximizes Pressure Distribution Blood Flow And Nutrient Exchange As Well As Shock And Impact Conforms To The Bodys Shape And Adjusts To Body Changes Over Time Includes Cover Hcpcs Suggested Code: E2622 All Roho High And Low Profile Cushions And Covers Are Available. Please Call Customer Service For Details. 2 Year Warranty