Cleaning instructions listed pertain only to their corresponding material, and are not intended for faucet cleaning. Faucet cleaning instructions for chrome and vitreous china.
Shower Doors cleaning instructions.

Success with cleaners and procedures is dependent upon such factors as the hardness and temperature of the water, using exact measurements of ingredients, changes in cleaning formulas and the condition of the product being cleaned. Since there are variations within these factors, Kohler cannot guarantee the effectiveness of the formulas mentioned.