The McMaster-Carr 5344K28 Twist-Claw Hose Coupling is a versatile fitting designed for hydraulic, pneumatic, and plumbing systems. With a 3/8″ NPT female iron construction, this coupling ensures a secure and reliable connection for your hoses. The twist-claw design allows for quick and easy installation and disconnection, making it a convenient option for various applications. This unit comes in a quantity of 5, making it ideal for businesses or projects requiring multiple couplings for seamless integration into existing systems.