[Mg-t] gas tank coating

[dhhall at bellsouth.net]

I would like to coat the inside of my MGTD gas tank with a protective coating (Red-Kote).  The tank seems to be segmented inside.   I'm not sure if I need to unscrew the plate on the lower back side to remove this.  Excuse my ignorance, but is this some sort of gas gauge sender?  If so, it certainly seems I should remove it.  Any thoughts?  Thanks in advance, David