Kohler K-301 Mode D'emploi page 13

Tile
9. Install Tile (If Applicable)
Verify that there will be a 3/4" (1.9 cm) to 1-1/4" (3.2 cm)
distance from the top of the valve shoulder to the top of the tile.
If there is not, correct the valve clearance as described earlier.
Install the tile up to the plaster guards on the valves and the
spout supply tube.
Kohler Co.
Valve
Shoulder
3/4" (1.9 cm) Min.
1-1/4" (3.2 cm) Max.
13 113969-2-AB