I use my stem to caulk basement window sills and the 2 foot length makes it easy to get to where foam is needed. One suggestion: when putting the gun and foam can together, bring the gun to the can, not the other way around. My first attempt at putting a spray can on a gun was unsuccessful. The can was too heavy when trying to put it on the gun and I managed to mix up the threads. Foam came out of the glass and I had porridge on my hands. It was much easier to put the can on the table vertically and bring the gun to the can. With this method, the two components fit together perfectly.
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