DescriptionThe plastic check is easy to install, convenient for you tounscrew and replace. The check is widely used in many industryapplications including fuel pumps, household appliances, agriculturalequipment, etc.Features-Color: Black-Material: Plastic-Size: 4x1.8x1.8cm/1.57x0.71x0.71in - Function: The check valves are applicable for fluid systems to prevent countercurrent liquids. - The one way check valves are made of plastic, sturdy, wear-resistant and durable for long-term use. - Features: the pipe port of the check is designed with apagoda-shaped slot, non-slip, with good airtightness and goodadsorption performance - Application: The non-return check valves are widely applied for automotive parts, machinery industry, agriculture, etc.- Adopts precision production to stable characteristics and high reliability.