The 3rd rack spray tube on the Whirlpool and Maytag models are stationary, but the rack itself is shaped differently as well. The KitchenAids, such as my 604 model, have the dual rotating spray tubes and a left side shaped for mugs, with the middle (right of the jets) angled for tall glasses, but bowls and containers can be laid flat here as well because of the tube that runs directly beneath. The 3rd rack of the Whirlpool/Maytag version have the left side flattened, for bowls, utensils, but the middle section seems to be only designed to hold mugs or short glasses, no tall drinking glasses like on the KA version.