What stands out about this unit is the blue shell, which looks neat and stays clean.
Forward and Reverse Relay Module for Tarp or Winch Motor Snow Plow
If you check the casing, you will find that the Deltrol brand is clearly marked.
You can spot the White-Rodgers branding right on the top, which helps when you are sorting through parts.
Potter & Brumfield built this relay with a sturdy frame, and you can feel it when mounting.
The BU1 AC model feels solid when snapped onto a rail, and the release tab works smoothly.
A nice touch is the tidy pin layout on Model R10-5A10-120.
What stands out about the build is the General-Electric signature on the plastic housing.
I noticed that the model attribute says Not Applicable, and I appreciate the clear wording here for browsing.