The indicators on the left of the real photo were previously identified as being used on Dayton 300's & 400's. However if you look at the collage of Dayton Indicators, the indicators show Dayton 300's & 400's are square with the number centrally placed.

The photo of the Simplex shows an Indicator that is rectangular with what appears to be the gallon number on the left and and something on the right (presumably GAL written vertically.)

Are their any Dayton 300/400 or Simplex owners out there that can confirm the correct indicators for either pumps?

Dayton Collage.jpgDayton or Simplex.jpg