Thermophore MaxHeat Medium Joint Size (14 x14 ) Body Positioners lluvia™ is IP68 Waterproof Certified❗What MSHQ 1594XL lluvia™ is IP68 Waterproof Certified❗What does this mean Weight Capacity * Ideal for use in nursing homes hospitals and home use * Audible low pressure alarm activates when pressure falls below 10 mmHg * Cell in Cell design prevents the patient from bottoming on the bed in the event of power failure * High volume extra quiet pump produces 15 LPM of air volume * Mattress has 20 bladders * 10 cells are constrcuted with Nylon TPU that are soft lightweight and will not stretch * Quick fill adapter standard * CPR valves for fast (60 second) deflation * The zippered Nylon TPU cover material is heavyweight water resistant vapor permeable has a fiber quilted bottom and is machine washable to provide protection and comfort * Water resistant permeable cover * 1 Year Warranty * Specifications * Power: 110 VAC 60Hz * Pressure Range 10 70 mmHg (within the cell) * Air volume 15 LPM * 10 15 20 25 minute selectable cycle time * Shipping Carton Size: 28 L x 17 W x 13 H * Shipping Weight: 40 lbs * Medium Joint Size 14 x 14 * Designed for Arthritis sufferers * New Four Stage Therapy Switch provides optimum 20 minute treatments * Simple one touch control features auto shut off timer * Produces intense moist heat without adding water * Fast acting therapy relieves pain and stiffness for hours * Shipping Carton Size: 16 L x 12 W x 4 H