It's the extra inch of height on the 9005 that has me concerned (plus the cost). It's pretty tight getting the 9002 cup out with the shelf in, and I need the shelf for all of my timers and outlets. Getting it over the edge of the sump requires tilting the cup, and if it's beyond 100 ml of gunk it will spill out the stuff and I have to catch it with a cup or small pail. With that larger diameter 9005 cup it might be tougher to tilt it. If you think of it, the next time you clean out the cup, measure the diameter of the cup, the height of the whole cup unit, and also the height of just the neck under the cup. That would give me a better idea if it's possible. Thanks.