DescriptionThe check valves are applicable for fluid systems to prevent counter-current liquids. The one way check valves are made of plastic, sturdy, wear-resistant and durable for long-term use. The non-return check valves are widely applied for automotive parts, machinery industry, household appliances, agriculture, etc.Features- Color:As shown.- Material:Plastic. - Size:4.50X2.00X2.00cm/1.77X0.79X0.79inch. - The check valves are easy to install, convenient for you to unscrew and replace. - The check valves is widely used in many industry applications including fuel pumps, household appliances, agricultural equipment, etc. - These one-way check valves are made of plastic material, safe and anti-rust. - These inline check valves allow the liquid or air to stream in one direction, thus preventing backward stream. - Features good high temperature resistance and corrosion resistance.