whirlpool,hot tub, spa 1.Specially broad and deep seats 2.All over feet massage 3.Adjustable spring SM-7300 are special crafted to provide the most deep and broad seating, spacious footwell with comfort massage jets.Neck and should jets.Features adjustable mood fountian, 100 sf extreme big size filtering system, sitting into SM-7300 you feel like a king, everything just under your control. ...