Product the Heat Exchanger Is Made of High Quality Stainless Steel, Which Is Corrosion Resistant and Very Durable. It Is Constructed with a Bellows for Optimum Efficiency. This Heat Exchanger Is Used to Keep the Pool and Boiler Water Separated, and Is an Effective Way of Transferring Heat Between the Two Systems. Smooth Tube and Shell Construction Allows Water to Flow Through the Heat Exchanger at High Speeds to Maximize Heat Transfer. This Heat Exchanger Is Uniquely Designed to Complement Your Pool System or Sauna. Product Specifications: Material: Ss304 Stainless Steel Power: 60 Kw Pool Connection Diameter: G1 1/2' Heater Connection Diameter: G1' Number of Tubes: 25 Pressure Test: Pool Water Circuit 10bar Hot Water Circuit 5bar Pool Water Flow (L/Min): (60kw) 250 Hot Water Flow (L/Min): (60kw) 30 Dimensions (Length X Width): (60kw) 48.5 X 13.4cm Packing Size: (60kw) 54*19*19cm/5.2kg Weight: (60kw) 5.2kg The Package Includes: 1x Heat Exchanger