Span America PressureGuard APM Mattress Control Unit,Standard,Each,5500Price: USD356.39 Span America PressureGuard APM Mattress Control Unit changes pressure inside cylinders within a small, perceptible range. This gives the user some control over firmness, without compromising pressure redistribution or causing bottoming out. The control unit allows simple adjustment for user comfort.Other products from H e a l t h P r o d u c t s F o r Y o u |