Autotrol 255 Upper Valve Module with 460TC Timer Assembly, transformer, camshaft, cover and Oring kit.
Fits all Autotrol 155 and 255 Series Tank Adapters.
This is not the complete valve, just the upper valve body and timer assembly.
* Please specify the diameter of the resin tank your valve is attached to now, when ordering. *See "How to Measure and Why It Matters".