Gravity 7 Long Term Care Mattress 36 x 80 x 6 Bath Shower Chair Accessories 75 * Seat Height: 5 Instrument and Solution Stands 75 * Seat Height: 5 above tub wall * Weight Capacity: 350 lbs * Tub Wall Width: 2 5v Ni Cad handles * 120 minutes of operation between charges (compared to 60 minutes for standard Ni Cad handles) * Charges in universal desk charger or with removable AC adapter * Compatible with all Welch Allyn 3 (Mfgr#15770) * Multi layered high density foam provides optimal pressure redistribution * The ultra soft heel section is uniquely designed to provide extremely low skin interface pressure * The mattress cover is a 2 way stretch water resistant vapor permeable nylon * The cover provides a low moisture transmission rate (MVT) which keeps the patient cool and dry * Meets fire code 1633 * 7 Year Limited Warranty * Top layer of foam is high resilient and die cut which provides comfort and proper pressure redistribution