• Mainly used for water flow in one direction. Water is only allowed to flow in one direction to prevent accidents caused by water backflow.
• Brass. Will not be easily corroded.
• Allow water flow from 1/2 inch Female thread to 1/2 inch Male thread. Backflow preventer.
• Used for water tower, water heater and toilet.
• When purchasing and installing, pay attention to the flow of liquid. If the installation is reversed, water will not come out.