An Alternating Pressure Mattress or Low Air Loss Mattress is a combined mattress with alternating pressure pad.Air Mattress - Meridian Medical Ultra-Care Perimeter Plus Group IIQuantity*Contact Us to PurchasePRODUCT INFO 8" alternating pressure mattress with low air loss 3" foam support base, 5" alternation air 4" w x 8" h foam side rails made with a high-density foam for easy patient transfer and bedside support Quick disconnect cells for easy cell replacement Air cells made with nylon/polyurethane for increased durability and reliability CPR quick deflate located at the head of the mattress Capacity: 425lbs (Maximum patient weight PRODUCT DIMENSIONSMANUFACTURERMeridian Medical Product ID: #4580P