One Sided Staircase 36 Heating Units 19 1 2 x 11 7 8 Underpads 19 1 2 x 11 7 8 (Interior Tank Size) * A compact design makes this model ideal for clinical use accomodating sheets up to 19 x 11 * Compact and rugged it also features a stainless steel housing trimmed in black with an insulated stainless steel hinged cover * Variable temperature thermostat maintains water at controlled temperatures between 150oF and 190oF * As in the 1501 the drain system and valve are 100% brass and both models also have an integral digital thermometer for easy monitoring of water temperature * Grounded hospital grade plug and high heat safety switch * * Comes complete with commode bucket with handle cover and splash guard bariatric load capacity under normal use Completely assembled with steel fasteners and metal braces * Pre assembled handrails and uprights * One piece handle rail support system * Comfort grip moulded solid hardwood handrails * All hardwood plywood base with an ultra durable UV cured * Pre assembled handrails and uprights *finish * Platform 24 x36 x24 * Each Step 10 x36 x6 * Overall Size 56 x40 x59