The PureSpa Bubble Massage by INTEX provides the ultimate spa experience at the touch of a button. The tilt-adjustable control panel activates the 120 high-performing bubble jets surrounding the interior of the spa for refreshing massage. Easily adjust the heating system to your desired temperature. The spa comes with a convenient energy efficient spa cover, up to 50% more energy efficient resulting in cost savings. PureSpa provides simple maintenance with easy-to-replace filter cartridges for lasting enjoyment for up to 4 people. Outer Dimensions: 77 inch x 28 inch. Inner Dimensions: 57 inch x 28 inch.