Thank you for bringing your question to Tundra Restaurant Supply.
To reverse your hinge #21468; you will need to remove the strap piece from the flange and remove the pin assembly (male end piece), this should just slide out of place with a good grip. Next, you will see the hex hole from which you removed the pin assembly, punch out the white cap from the other end. From here, you can just insert the pin assembly where the cap came from and vice versa. Be sure to check the positioning of the hex hole, as this dictates the swing of the door.
Answered on 5/15/2013 by Chris from Boulder