THIS IS A NUBER 8 FEMALE O-RING ( 3/4-16 THD) X 8 HOSE FERRULE X 90 DEGREE BEND WITH A HIGH SIDE ( 16 MM) R134A CHARGING PORT. THIS FITTING IS MADE OF AN ALUMINUM TUBE AND CHARGING PORT WITH A STEEL NUT AND HOSE FERRULE. IT IS DESIGNED TO FIT STANDARD DIAMETER TWO BRAID HOSE.