The Girard Test Box is a user-friendly, portable all-in-one testing box for testing Safety Relief
Vents. It is configured for both pressure and vacuum testing. Multiple connections are available to
test a variety of pressure relief devices. Constructed of steel. The pressure regulator allows shop
air pressure to be adjusted. There is an easy to read NIST digital compound gauge that registers
both pressure and vacuum settings. Incudes two selector valves; one to apply or release air
pressure, and one to allow user to select for pressure or vacuum testing. Manufactured and
assembled in the USA.