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Title: not actually 4 inches
Review: I ordered this because i was having difficulty getting a 4 inch thimble locally, saw this online for a good price, and ordered it. After I cut a hole in the wall and put in in however, I found there is a almost 1/2 inch gap around a 4 inch pipe. I measured it and found its 4, 5/8" inches in diameter. I'm attempting to modify it up to a 5 inch pipe but its more hassle than its worth. otherwise it would be exactly what I needed.
