Feature●Material: Brass for durability and resistance to corrosion, ductility at high temperatures, and low magnetic permeability. Will not be easily corroded.●Function: Mainly used for water flow in one direction. Water is only allowed to flow in one direction to prevent accidents caused by water backflow.●Application: Perfect for kitchen faucet, water tower, water heater and toilet pipeline.●Installation Tips: When purchasing and installing, pay attention to the flow of liquid. If the installation is reversed, water will not come out.Description Brass Check Valve 1/2 Male to 1/2 Female Thread Non Return One Way Gold