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Can a TP7488 while in use cover be used with an FS style box?

Yes, you can assemble them together as the screw holes do line up.

One potential issue is that the FS boxes have a lip around the face of the box so the mating cover seats properly.

Using a while in use cover the gasket which is the only means of stopping water getting in is deformed when installed and may not protect the best.  The installation will need to be approved by the AHJ.