Faucet coupling with internal thread 1/2 inch and hose grommet dia 12-18 mm (brass)

This brass faucet coupling with internal thread 1/2" and hose grommet (12-18mm) is suitable for connecting a hose to a 1/2" faucet with external thread. To clamp the hose to the hose grommet, use a hose clamp.