... ,America,Asia Cast Iron Bathtub,Double Whirlpool Bathtub,1.5m Bathtub for two persons,2 persons Indoor Massage BathtubModel MBL-9207Size 1500×1500×680 mmSpecificationA) Material ... sterilization3.bubble pump system4.computer control with FM radio5.heater6.self-cleaning systemD) Others :The water proof around the bathtub to prevent ...