![Amazon.com: Antstone Digital Vacuum Gauge HVAC Micron Gauge Vacuum Tester Micron Meter with 6 Units 7/16"-20UNF(1/4" SAE) : Industrial & Scientific Amazon.com: Antstone Digital Vacuum Gauge HVAC Micron Gauge Vacuum Tester Micron Meter with 6 Units 7/16"-20UNF(1/4" SAE) : Industrial & Scientific](https://m.media-amazon.com/images/I/612WvjAXVmL.jpg)
Amazon.com: Antstone Digital Vacuum Gauge HVAC Micron Gauge Vacuum Tester Micron Meter with 6 Units 7/16"-20UNF(1/4" SAE) : Industrial & Scientific
![Amazon.com: DuraChoice 2-1/2" Oil Filled Vacuum Pressure Gauge, Water Oil Gas - Stainless Steel Case, Brass, 1/4" NPT, Lower Mount Connection -30HG/30PSI : Industrial & Scientific Amazon.com: DuraChoice 2-1/2" Oil Filled Vacuum Pressure Gauge, Water Oil Gas - Stainless Steel Case, Brass, 1/4" NPT, Lower Mount Connection -30HG/30PSI : Industrial & Scientific](https://m.media-amazon.com/images/I/81A3sXHCWgL.jpg)
Amazon.com: DuraChoice 2-1/2" Oil Filled Vacuum Pressure Gauge, Water Oil Gas - Stainless Steel Case, Brass, 1/4" NPT, Lower Mount Connection -30HG/30PSI : Industrial & Scientific
![Amazon.com: 2" Oil Filled Vacuum Pressure Gauge - SS/Br 1/4" NPT Lower Mount, 30HG/0PSI : Industrial & Scientific Amazon.com: 2" Oil Filled Vacuum Pressure Gauge - SS/Br 1/4" NPT Lower Mount, 30HG/0PSI : Industrial & Scientific](https://m.media-amazon.com/images/I/71JblOvnYmL.jpg)