Brass hose barb to male pipe fitting: 1/4" inside diameter x 1/2" MNPT Part No: 125-4D 1/4 Hose ID (Your hose / Tubing must read 1/4" ID or 0.25" ID for this to fit) Npt Thread: 1/2" Npt x 14 Tpi Male (Actual Nominal Thread Size 7/8") Working Pressure for up to 250 PSI @ -65F to +265F

This is a solid brass hose barb to male pipe fitting that allows for 1/4" inside diameter hoses to be connected to 1/2" NPT national pipe threads. Connect the hose onto the barbed end of the hose barb and secure it with a gear / hose clamp to prevent leaking.