Trying to find duplicates in columns on two different spreadsheets, and highlight them as yellow.

One file is "LeadShare" and the reference area is F2:F27

The other is "Install Customer List Pac NW- Diaz" and the reference area is G4:G745

I want the values on the Install Customer list to show as yellow fill if they are already stated on the first (Leadshare) list. Any help is greatly appreciated!