Stainless steel bathtub with SPA function has three sizes to choose from. It is equipped with control twist, which can be used for operator to control the strength and time of water bubbles. The auxiliary hot air function helps to maintain the original water temperature. The bathtub is well sealed and can be used for pet medicine bath. The bathtub is equipped with a pet retaining ring, which is convenient for pet retaining. The bottom adjusting screw can be equipped so that the equipment can be placed smoothly on uneven ground.