Product description:? The swimming pool heat exchanger is made of high-grade anti-corrosion stainless steel, which has the characteristics of anti-rust and salt water resistance, so it is very durable and very suitable for chlorine or salt water swimming pools and spas. 1 1/2″ FPT is used for one side of the swimming pool water and 1″ FPT is used for hot water. The salt pond heat exchanger adopts an innovative in-line design to ensure a continuous constant temperature and indirectly transfer heat between any hot water circuit, steam circuit and any swimming pool or spa facility. The shell-and-tube heat exchanger is based on the 60°C (140°F) temperature difference between the incoming water and the hot water, and can provide a fresh pond at a rate of 135 kBtu/hr. Welcome to my store. Welcome to our store^-^. The swimming pool heat exchanger is made of high-grade anti-corrosion stainless steel, which has the characteristics of anti-rust and salt water resistance, so it is very durable and very suitable for chlorine or salt water swimming pools and spas. It gets hot immediately without waiting. This kind of heat exchanger is a very safe, reliable, efficient and cost-effective way to heat swimming pools or spas through any hydraulic system. The heat recovery pool heater is very suitable for swimming pools, spas, hot tubs, solar, hydraulic heating, oil cooling, heat recovery, snow melting, etc. Material: 304 stainless steel. Heat transfer area: 3.2 square feet. Hot water flow rate: 25 L/min. Cold water flow: 200 L/min. Side of hot water pipe: 1 FPT. Same side port: 1 1/2 FPT. Packing size: 40 x 19 x 19cm. 1X stainless steel heat exchanger. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.