Med-Aire variable pressure alternating pressure pump with standard (78"L x 36"W x 2.5"H) pad features 130 individual bubble cells for maximum comfort and effectiveness. Variable pressure pump has 5-minute cycle time. Variable pressure setting on deluxe pump allows comfort setting for maximum comfort and compliance. Durable, heavy-gauge, premium vinyl bubble pad provides superior therapeutic treatment. Built-in bracket allows for easy mounting to bed.