1. Made from food-grade material, anti-aging, eco-friendly and available for long service life. 2. Featuring 3.2 gallon metal pressurized tank. 3. Enjoying performance in explosion proofing and compression resistance. 4. Comes with imported air valve core which reduces the risk of air leakage. 5. Suitable for reverse osmosis water purification system. 6. Universal pressurized tank. 7. Material: Food-grade ABS 8. Size: approx.240*240*350mm / 9.45*9.45*13.78in 9. Package weight: 2.26kg 10. Capacity: 3.2 gallon(12L) 11. Working pressure: 50Mpsi 12. Interface size: 2 points valve 13. Gas storage pressure: 7psi 14. Remove the water inlet cap, slowly screw the pressure tank ball valve into the upper water inlet, hand tighten, insert 1/4" PE pipe and insert it into the end. 15. Check if there is any leakage after turning on. If it is found, adjust the pressure barrel ball valve in time, if necessary, wrap the PTFE TAPE at the water inlet. 16. In order to clean the pressure tank liner and the RO machine, after the first barrel of water is filled, please open the pure water in the barrel and drain the second barrel for drinking. 17. During normal use, the water should be drained once a month, and once every time the filter element is replaced, it should be drained once to achieve the purpose of cleaning the liner, filter element and pipeline. 18. 1* Pressurized Water Storage Tank 19. 1* Valve 20. This product uses plastic thread. Please install the ball valve correctly to avoid twisting and screwing. Do not tighten too hard. 21. If the user leaves home for a long time, please close the inlet valve and cut off the power supply. 22. When installing, connect the pipeline correctly and confirm whether the high pressure switch can achieve full water shutdown. 23. Pressure tank working temperature 1-45℃ 24. Avoid sun exposure to pressure bucket. 25. Please allow slight error due to manual measurement and make sure you do not mind before ordering.