The TopSkelet hot tub shell is designed and sized for 8 people and heavy-duty use in public facilities. It is made of EPS200 and surface-reinforced with an approximately 5 mm fiberglass layer. The upper surface has a roughened sand coating for applying mosaic tiles selected by the operator. Its thermal insulation meets the highest requirements for limiting heat transfer from the water into the building structure, maximizing operating energy efficiency. Water capacity is approximately 4.5 m3. The standard shape and size reflect the most common requirements; virtually any shape and dimensions can be produced to order.