So I'm trying to find a low-cost source for a odd sized plastic-type tube. ID 15mm x OD 17mm x Length 100mm. I tried to find some tubing that would be close, but I've ha no luck. Any other thoughts? FWIW, this is to function as a AA battery spacer in a 3xCR123 to 2xAA conversion. Ideally I would like to leave the spacer in place to discourage accidentally using the CR123's. I know there are some custom flashlight people out there who offer these things but I hate to spend that much on such a simple piece... Surely there is something out there which will work or would work after slight modification!
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