The AR-400 Standard by AquaRest Spas is a 110v plug-n-play, 4-person portable and durable hot tub with a patented LED backlit waterfall with 9 different color settings, 4 deep cup holders, and ASTM certified locking safety cover. Relax and unwind in one of the 4 lumbar arch-supported captain’s seats while the 20 two-tone stainless steel, multi-level jets, powered by a 1.5hp Jacuzzi pump, provide soothing hydrotherapy to different muscle groups. AquaRest Spas are manufactured using state-of-the-art roto molding technology, producing an extremely durable and unbelievably portable hot tub. Ease your mind knowing that your spa includes an ASTM-certified locking safety cover, keeping leaves and debris out of and heat inside of your hot tub, making it extremely energy efficient. Spend more time enjoying and less time maintaining your hot tub with the patented Easy Kleen 100% water filtration system included in every AquaRest hot tub. Our standard hot tubs are heated by Friction Heat - when the motor is running it creates roughly 1KW of heat, combined from the friction created by the water rushing through the pump and plumbing provides adequate heating to increase the temperature by roughly 1°F per hour. The AR-400 Standard follows the “Simple, Portable, Durable and Affordable” philosophy that has helped make AquaRest Spas the #1 online hot tub manufacturer. Free residential delivery and factory warranty are included. Proudly Made in the USA! - 66" x 75" x 31" - 240 lbs. - Patented LED waterfall with 9 color settings - Patented Easy Kleen 100% filtration - Jacuzzi 1.5hp pump.