Brass Hose Fitting, Connector, 1/4 Inch Swivel Barb x 1/4 Inch Male NPT End, PK 50 For use with PVC, PU, Rubber hose or tubing and to be secured with a hose clamp or crimped ferrule This professional contractor / professional grade hose barb is machined from a solid brass stock using CNC machine center. Brass is corrosion resistant and provides a tight seal on the hose..