According to KA site, only one model has the 'Clean water wash' option. Which sounds really stupid because what's the opposite of that?
Are we to believe all the other models have THAT instead?
One thing manufacturers do to make models seem different is to simply not mention in the literature a feature that was previously mentioned in upper models, even though all models actually have the feature. (rolling eyes)
Also, errors happen in the making of the site or brochures. If your very concerned, I'l call the company or visit a show room somewhere to see the model in person. Don't go based simply on what literature says.