Minimized shearing through Geo-Matt® surface geometry & Shear Transfer Zones on bi-directional stretch cover. Minimized fall & entrapment risk w/Safety Edge™ bolster design. Flexible treatment modalities, including alternating pressure and powered flotation.  5 Years warranty, non-prorated.   #SC844229-Ea Uses SPA5900 Control Unit for Powered use.  UNSPSC#42191810