●Can be connected with 3/8" Hose ID. ●Can be easily connected with tubing hose line. ●This 3/8 inch ID hose barb fitting is smooth overall without burrs. Size meets the standard. Exquisite craftsman makes it safe and reliable. ●Barb splicer mender is made of brass. NOTE: Brass barb hose splicer is not suitable for potable water. ●【-65~250°F 150PSI】Barb splicer mender has strong temperature resistance and good pressure resistance. So barb union splicer fitting is often used for water, fuel, oil delivery.