The Watts Fluidair CNR1/4 is a 1/4" non-return valve designed to prevent backflow in pneumatic systems. This valve is constructed from high-quality materials, ensuring durability and long-lasting performance. It features a compact design that allows for easy installation in various applications. With a maximum pressure rating of 150 PSI, it effectively maintains system integrity by allowing flow in one direction only. This non-return valve is compliant with industry standards, making it a reliable choice for ensuring efficient operation in air and fluid systems.