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You could just use 1" conduit caps that they use on Schedule 40 conduit. The plastic will be large but will deform enough to fit 1" hole. Then drill or hole cut a 3/8" in the middle. If you wanted to get really artsy, you could pop rivet an aluminum plate to the bulkhead and hole cut the 3/8" in the middle of that.
Last edited by rusnak; 05-17-2010 at 05:31 PM..
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