E-Z Clip Series Fitting, 3/4-16 Female O-Ring (Short Pilot), -10 Hose, 90 deg Elbow With High Side Charge Port (R134a)

For a complete assembly you'll need FT1357 Clip Closing Pliers, two appropriately sized clips and a cage, refrigerant oil that's compatible with your A/C or refrigeration system, and GH134 Multi-Refrigerant hose. The nipple comes with two black o-rings already installed and those should stay put. Don't remove or replace them. Once you have everything on hand, the process works like this: cut the hose square, slip two clips onto the cut end, oil the nipple generously before insertion, push the nipple in until the hose seats flush against the shoulder, snap the cage into the groove, slide the clips over the cage arms, and close them down with the FT1357 pliers. No crimping machine or power supply needed.