Alternating Pump System and Pump 220V Akros/ Aquatherm is an alternating pressure pad with standard pump. This is the 220V version. Help prevent pressure sores. This is a bubble style pad that measures 78 inches by 34 inches by 2.5 inches. Pump mounts to bed with built-in mounting bracket and features an illuminated on/off switch Available with standard fixed pressure pump or deluxe variable pressure pump Latex Free Automatic 5-minute cycle alternately inflates and deflates 1 year warranty on pump Heavy gauge, medical grade vinyl is easy to clean, flame retardant and anti-bacterial 90-day limited warranty on pad 78 x 34 x 2 1/2 Bubble style pad effectively reduces pressure 275 lb maximum weight capacity Category Pressure Management Mattress Overlays This item ships from a separate warehouse and may require extra time for delivery.