Amazon.com: Jeanoko Pneumatic Vacuum Regulator, Air Pressure Regulator Air Regulator Valve ABS ‑100 To ‑1.3Kpa with Dial for Industry 80 Vacuum Regulator Valve Vacuum Pump Regulator : Industrial & Scientific
Vuototecnica BSPP, Adjustable Vacuum Regulator - Hoses Direct
Vacuum Regulator, 0 to 30" Hg, 2 cfm Max Capacity from Cole-Parmer France
VacMotion product: 11 04 10 - Adjustable vacuum regulator, Operating Pressure, 6.3 Hg to 29.92 Hg, Max Flow of 23.5 SCFM
Vacuum Regulator for small portable pumps 3/8 NPT - USA brass - Hamby Dairy Supply