A Jacuzzi is a brand name for a type of hot tub or jetted tub. The Jacuzzi company is an American private company that manufactures and markets hot tubs, pools, and other bath products. The company was founded in 1915 by seven brothers from the Jacuzzi family, who developed a variety of products including pumps for agricultural use. In 1948, they created water pumps to treat a family members rheumatoid arthritis, which were later integrated into a recreational hot tub in 1968.

Hot tubs, jetted tubs, and spas can also be referred to as Jacuzzis, but Jacuzzi is a trademarked brand name for jetted tubs and other spa equipment. Hot tubs are large tubs of hot water used for relaxation and hydrotherapy, and they are designed for recreational use and to provide hydrotherapeutic benefits, easing muscle aches and pains, and alleviating stress and anxiety. Hot tubs have advanced over the years, and manufacturers have developed special technological features to enhance the overall spa experience, such as LED lighting, Bluetooth systems, control panels, massage jets, and more.

In summary, a Jacuzzi is a brand name for a type of hot tub or jetted tub, and hot tubs are large tubs of hot water used for relaxation and hydrotherapy.