... ) Seating Capacity: 3 adults 3) Lucite Acrylic A310 Spa, Spa for the aged , Hot tub, Swim spa, Massage tubDimensions (L x W x H ... insulating PU foam (USA) on the under-side of the spa shell:YesSparelax Control SystemYes A310 Spa, Spa for the aged , Hot tub, Swim spa, Massage ...