I bought a couple of plastic bottles from the Army?Navy store for pennies. So, since it has more or less seemed to work as well as anything, it was a good deal.
jim
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Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
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SB forever