The PureSpa provides relaxation at the touch of a button. The tilt-adjustable control panel activates 120 high-performing bubble Jets surrounding the interior of the spa for a refreshing massage. The heating system adjusts to fit your personal temperature preference allowing a stress-free spa experience. PureSpa provides simple maintenance with easy-to-replace filter cartridges for lasting enjoyment for up to 4 people. Outer Dimensions 71 inch x 71 inch x 28 inch. Inner Dimensions 51 inch x 51 inch x 28 inch.