This listing is for 5pcs of barbed hose connector. 

BRASS HOSE BARB MENDER / SPLICER

1.57"  TOTAL LENGTH

5/16" HOSE BARB ID  X  3/8" HOSE BARB ID

MAX PRESSURE 150 PSI

TEMPERATURE RATINGS FROM   -40f   THROUGH   160f

BRASS TYPES: BARSTOCK FITTINGS CA360   FORGED FITTINGS CA337

This Brass fitting is NOT deemed Lead Free

All measurments and conversions are approximate and in milimeters (mm)  and if you wish to convert to inches, please use 1 inch = 25.4mm. Generally, the internal diameter of the hose should be smaller than the barb's  outside diameter in order to grip. If loose, use hose clamp to secure.