【High quality】Made of high quality brass, is durable, can be used for a long time, and has a long service life 【Stability energy】The In-line Check automatic valve is made of brass and stainless steel, with surface precision treatment, good corrosion resistance and high pressure 【Good sealing】This type of valve is good to prevent liquid leakage, should be installed horizontally during installation, allowing only the medium to flow in one direction to prevent accidents 【Wide application】Applicable for water, steam, oils, nitric acid, urea and more. Mainly used in the pipelines of petroleum, chemical, pharmacy, fertilizer, electricity 【Package contant】1pcs Non Return Check Valve, Manufacturer: SENRISE