@peteroznewman That indeed does answer the question. I was attempting to provide a minimalist example to achieve my ultimate goal which is more complicated in my opinion. See, I was trying to get all wetted surfaces in a more complex geometry (imagine thousands of spheres and other terahedrons inside the rectangular prism). By creating the rectangular prism with the Enclosure feature, I was able to then detach all the associated surfaces and select the correct ones. I may make a separate post with a better representation of my problem and provide an answer there. Thanks for the help!
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