Kohler specifications for the[K-24009 GH-0(https://www.us.kohler.com/webassets/kpna/catalog/pdf/en/K-24009-GH_spec_US-CA_Kohler_en.pdf) show a height of 25 5/8"' from floor to tub rim. Their specifications for theK-T97332-4-BN show a faucet height of 23 5/8" maximum.

I'd try cutting the end off a 4" PVC Schedule40 End Cap, polishing it, and installing it as escutcheon between the faucet base and the floor. Cheap, easy to clean, and it's never going to rust or fail. Depending upon where the faucet is located, it may not be seen.

Better yet.

I don't see how that works to raise the filler which is the goal, right? According to the filler specs, the filler is attached to the Kohler K-97339-NA Mounting Block that is mounted to a wood support whose surface is 2-1/4 to 3-1/6" below the level of the floor.

Use longer screws.

I so appreciate all your suggestions Joseph Corlett and also wdccruise input. If you think of something else please let me know. Thank you so much.

As shown in the Kohler K-24009-GH specifications and installation instructions, a faucet is to be installed on the rim of the tub. The tub is too high for the tub filler. The shorter Signature Hardware 481143 Boyce 61" Acrylic Air Massage Tub would accommodate a tub filler.

Thank you kindly! I bit the bullet and ordered a new one that works with the tub.