Why is it that modern Hot Tub and Jacuzzi style Spa manufacturers make masses of different models in various shapes, sizes, designs and specifications? It is because they can’t make just one model that suits everyone. People are different shapes, sizes, heights and of course their individual lifestyles vary considerably. Before you go to the Spa dealer, take a few moments to think about why you want to buy a Hot Tub spa and what it is that you want from it.