I like cheap too. This is cheap and works for me. It is foam rubber pipe insulation (kinda looks like a small black pool noodle). You can get it at Walmart, Home Depot, etc. I think I used 3/4" or 1", just something I had laying around the shop. It not only insulates against the cold (which was my primary goal), but should keep out most critters. It is water proof also, so doesn't hurt it to get it wet. Pool noodles are too stiff, but the pipe insulation compresses easily to give a nice tight fit. You could probably get 4 or more out of one stick. I keep a couple extra in the coach. They loose their shape after 6 months or so.
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James and Diana
2014 Entegra Coach Aspire 44B
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