Product: 4TT21A Barbed Hose Mender A straight, rigid hose mender designed to join 1/2 inch ID hoses quickly and securely. Constructed from H59 brass on both ends for strength and corrosion resistance, this male to male hose barb fitting delivers reliable performance up to 250 psi and is reusable for maintenance or reconfiguration. Key benefits Secure connection: Dual 1/2 inch barb profile provides a tight grip to 1/2 inch ID hoses, reducing leaks and blowoffs. Durable construction: H59 brass body and barbs offer long service life in general fluid transfer and pneumatic applications. working pressure: Rated to 250 psi for dependable performance in pressurized systems. Reusable and easy to install: Push hoses onto each barb and clamp as required; the rigid, straight shape simplifies inline repairs and hose splices. Universal compatibility: Designed for hose ID 1/2 inch and hose OD approximately 7/8 inch, with both ends sized 1/2 inch male hose barb. Specifications Model: 4TT21A Fitting connection: Hose barb x hose barb Fitting shape: Straight Hose fitting genders: Male on both ends Hose fitting sizes: 1/2 inch on both ends Barb size: 1/2 inch For hose ID: 1/2 inch For hose OD: 7/8 inch Material: H59 brass, brass on both ends Pressure rating: 250 psi Reusable: Yes Style: Rigid Typical applications Irrigation and garden systems: or extend 1/2 inch supply lines and drip irrigation runs where a durable barb splice is needed. Workshop air and lowpressure fluid lines: Join or sections of hose in pneumatic tools, compressors, or coolant lines within the 250 psi rating. Marine and automotive fluid routing: Use for fuel , coolant bypass, or other nonpressurized to moderately pressurized hoses compatible with brass components and the specified hose dimensions. Installation tips Push the hose fully onto the barb and secure with an appropriate hose clamp to ensure a leak seal. Verify hose OD matches the specified 7/8 inch to ensure proper seating on the barb. Inspect clamps and hose ends periodically, especially in systems approaching the maximum pressure rating. This 4TT21A barbed hose mender provides a straightforward, durable solution for joining 1/2 inch ID hoses in a range of workshop, irrigation, and fluid handling applications.