heizi DN20 3/4 Check Valve, Check Valve, Brass with Arrow, Gas Heater, , Air, , , Acidic Gas

[About check valve] Model: DN20 Material: Brass, Weight: 5.3 oz (150 g) 【Easy Installation】Easy to use and easy to install. It displays an arrow indicating the flow direction. This check valve uses a DN20 standard internal female thread suitable for many connections 【Long Lasting Brass】This check valve is made of high quality brass, moisture resistance, corrosion resistance, high hardness and long life. It is sturdy and unbreakable, so you use it with confidence Prevents backflow: Used to prevent backflow in piping. Built-in closure system automatically opens and closes with the power of flowing media. It is only used in one direction of the media to prevent the media from backflow Compatible media: Suitable for , , , acid media, etc

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