What is the difference between KD Gold™ and KD Gold™ RTU?

KD Gold™ RTU is simply KD Gold™ concentrate pre-diluted with de-ionized water for consumer convenience and labeled for a specific usage. Because all KD Gold™ RTU formulations are simply KD Gold™ concentrate at slightly different dilution rates (and are just as nontoxic and biodegradable as the concentrate), any of them can be used interchangeably for any cleaning purpose. One exception to this rule is the glass cleaner, which is highly diluted so as not to streak the glass or mirror. Using any of the more concentrated formulas on glass would streak, and using the glass cleaner for tougher cleaning jobs would be ineffective.