Ashcroft and Ametek dial pressure gauges, 3D Instruments and Omega test gauges, pressure switch gauges, differential and vacuum gauges, and Heise digital pressure indicators. An instrument tech swapping a gauge on a process line, or a calibration lab that needs a test gauge, can match by range and connection. Stock is used and new old stock (NOS).
Brands here include Ashcroft, AMETEK, 3D Instruments and Omega Engineering.
More test gear is under Test & Measurement Equipment.