Nude, Bayard Alpert Replacement Filament, Single Iridium, MKS Style
Our GF29 Bayard Alpert, replacement filament has a single hair pin thoria or yttria coated iridium filaments mounted on a ceramic base. The replacement filament can be used on our GB28IR, GB43IR, and GB53IR BA nude gauges which are drop in replacements for the MKS 274028, 274043 and 274053 BA nude gauges. See our Nude Ionization Gauge Cross Reference.