BioCompression® Sequential Circulator, Model 3004, features calibrated gradient pressure, permitting indiviual pressure control within each chamber of the pmeumatic appliance. Many patients who experience severe localized pain are able to tolertae daily compression therapy with this unit because pressure can be reduced at the point of discomfort. Requires use of a BioCompression pnuematic sleeve. Two appliance outlets permit treatment of two extremites sumultaneously. No additional tubing required. Black. 7-1/2"H x 10-1/2"W X 3-3/4"D. 8 lbs. Hospital-grade plug.