1/4 MNPT reusable hose end fittings can be used again and again. These hose ends can be used with a 1/2 hose OD or a 1/4 hose ID. Has a Maximum pressure of 250 PSI. Product Features:Fits 1/2 hose outside diameterFits 1/4 hose inside diameter1/4 male national pipe threadsMaximum pressure of 250 pounds per square inch