Nude, Bayard Alpert Gauge, Single Iridium Filament, 2 3/4″ Flange
Our GB20IR is a Bayard Alpert style nude ionization gauge is mounted on a 2 3/4" flange and has a double helix tungsten grid, a tungsten collector, and a single coated iridium filament assembly. We can supply replacement filaments GFIR for the gauge or we can rebuild the gauge for you. See our Nude Ionization Gauge Cross Reference Guide.