Typically Works With:
Granville Phillips Models 260, 270, 280, 303, 306, 307 330, 340 ,350, and others.
MKS Instruments 290, 919, 929
Perkin Elmer DGC3
Varian 831, 836, 842, 844, 845, 880, 971-0003, 971-0014, 971-1008, Multi-Gauge, Varian 571 Tube K2471301
Veeco RG2, RG3, RG21, RG31, RG81, RG83, RG84, RG830, RG840, RG1000, RG1002