AQUAFOS pressure tanks are suited for all water systems: Industrial, Domestic and Agricultural. The steel tanks are constructed with polypropylene inner liner combined with high grade butyl diaphragm to isolate water and air. Thus provides a closed system for drinking water preventing the growth of bacteria and corrosion. Max. Working pressure: 10 Bar, Max. Working Temperature: 90?C. Application for tanks, water storage, Water pressure boosting and Water transferring. BSP Stainless Steel connection 25mm – 32mm. No maintenance needed. 5 Year warranty.