Effective backflow prevention: This one-way check valve ensures that the medium in the pipeline cannot flow back. It is suitable for gases and liquids.It can be mounted vertically or horizontally, suitable for piping settings. BRASS CONSTRUCTION: This check valve is made of high-quality brass for superior durability and resistance Its rugged design ensures long-term reliability and performance in demanding environments. Wide Range of Applications: Ideal for water towers, , and toilets, this check valve allows for efficient water flow and reliable water supply, ensuring your system runs smoothly without backflow issues. It is critical to confirm flow direction during installation to avoid issues such as water not flowing and to optimal functionality. Colour:As Shown Material:brass style:A Copper Color Package Contents: 5 * Check valve 5 * raw tape 10 * sealing gasket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.