The Boekel 177020 vacuum regulator gauge is designed for use with the Boekel 19691 and 19693 to display vacuum pressure. The gauge has a range of 1" to 30" of mercury (in Hg). Brass fittings provide durability and wear resistance in harsh environments. Regulator gauges are instruments used to measure the pressure inside a vessel and, often, to help ensure the optimal amount of pressure for a given application.

Boekel Scientific manufactures laboratory equipment such as incubators, shakers, rotators, and water baths. The company, founded in 1868 and headquartered in Feasterville, PA, meets International Organization for Standardization (ISO) standards 9001:2008 and 13485:2003.