... 2) Seating Capacity: 3 adults 3) Lucite Acrylic A310 Spa, Multi-function massage tub, Hot tub, Swim spa, Massage tubDimensions (L x ... CE, UL Approved):1 x 3.0kWLighting(ETL Approved):Multi-colored LED Underwater LightOzone Water Purification System:YesElectrical Requirements:220-240V/ ... of the spa shell: YesSparelax Control SystemYes A310 Spa, Multi-function massage tub, Hot tub, Swim spa, Massage tub