The Autotrol Nut is designed for all Autotrol 155 and 255 series and 168 and 268 series valves. The nut is used to attach the tube adapter to the 156, 256, 165, or 1265 bypass assembly.
The Autotrol Nut is designed for all Autotrol 155 and 255 series and 168 and 268 series valves. The nut is used to attach the tube adapter to the 156, 256, 165, or 1265 bypass assembly.