Well Steve, for starters, that's not the original dtergent dispenser. Obviously, it's not "yellowed' like the corersponding rinse-agent dispenser lol. As D&M dishwashrs continued to evolve, they got more "WCI" oriented. Those double open cubs are for prewash detergent. There's comparable double ones under the cover too. On the last DU&M Kenmores I saw, with a rising tower like my GE, they had double cups on both open & closed area. This last rendition I saw actually was reminiscent of the KA dispenser like we saw at Roger's last weekend. You had a cover flap that rotated around.