8"intermediate well or intermediate sump measures 6"x 12" inside.
Intermediate well has slide gate .
Has slide door for closing the flow to the bin unloading auger.
Clamps to a 8" OD unloading tube.
Has Tube for attaching 1" threaded pipe control rod to open and close the slide gate from outside the bin.
Center Sump control rod goes inside the intermediate control handle.
Proudly Made in USA