I would go with a commercial brand if you are installing them in a place that would make it hard to replace later since the cheapos don't last that long. and 3/8" is all you need. I also want to point out for those folks not familiar with rope lighting, that not all rope lighting is LED. Some of the cheaper stuff is incandescent so make sure you know what your buying and double check once received.
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1976 Newell Classic (Sold)
Home Base: Riverside, CA
If anyone needs my contact info private message me and I will send it to you.
-Joseph-
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