38-400 caps for airlock and storage by vjf3 3d model
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38-400 caps for airlock and storage by vjf3

38-400 caps for airlock and storage by vjf3

by Thingiverse
Last crawled date: 3 years, 1 month ago
38-400 caps for home brewing. Have you every grabbed some cider and kept the jug to ferment in? Well, so have I and now when I run out of bungs, I can use these caps to either seal or ferment in...when I lose the metal cap :)
Designed to have room for a lid seal - TPU .stl included for a plain cap and for one with a .25 inch hole which is perfect for a grommet.
I verified that the cap with TPU seal does seem to be air-tight and allows airlock to bubble.
Will also accept bone-fide 38 mm lid seals

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