The MedTech 5000 Mattress Overlay has 5-inch air cells that provide 20% more air cushion than 4-inch competitor models, which enables better flotation. Lightweight and easy to transport, this overlay is designed for patients up to 275 pounds. Adjusts easily for patient comfort; static mode for dressing changes and pain management. Pump alarms to indicate low pressure. CPR-pull for emergency deflation. Air cells and top cover are replaceable.High-Quality MedTech 5000 Mattress Overlay Maximizes Therapy with Low Air Loss and Alternating PressureMedtech 5000 Mattress Overlay - Low Air Loss Alternating Pressure Therapy Overlay System" Case Pack 1