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#31
02-14-2010, 10:02 AM
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Ok, I've been thinking about this insulator situation...Having never seen a porthole in person, about what kind of diameter or thickness would be necessary?
What I have done for various projects is take some automotive type vacuum hose and slit it to fit over what you want..plus, it comes in different sizes. You just have to make sure you slit it as straight as possible for a nice appearence. 
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