Parker Hannifin 325HB-12-8PP-pk10 Par-Barb Male Connector Fitting, Polypropylene, 1/2" Hose Barb x 3/4" Male NPT, Black (Pack of 10) Molded from high strength chemically inert thermoplastic materials Multiple barb design generates maximum gripping and sealing Fda compliant material Nsf-51 Uniprene washer