Item #: P93
Our Price: $0.49
In Stock, Will Ship On 01/28/2020.


This 38mm plastic screw cap features an airlock hole in the center (accepts all plastic airlocks). Handy to use with 1 gallon screw cap jugs when making mini fermenters.


Average Rating:
(based on 2 reviews)

Showing 2 Reviews:

Review and Rate this Item
by Matthew
on 8/21/2013
from San Diego
Works Great
I have 5 of these on 1 gallon fermenters and they all arrived in good condition and make for a convenient seal with my air locks.  Love them.
by Adam
on 8/2/2013
from Greenville
Don't buy these
I don't know if it happened during shipping or if I screwed it on too hard, but my cap had a crack in it that let air seep out instead of going through the airlock. Hopefully it won't compromise my brew.  I wish I would have decided to go with a bung instead. 
Review and Rate this Item
5/23/2019 12:16:44 PM
Do these work on 1 gallon plastic jugs? Or only on glass?
These also fit on standard plastic jugs.
9/4/2018 1:02:16 PM
I have some of these air lock caps however the holes were too big for my air locks and had to rig a rubber ring to make then air tight . I want some caps that are made to fit the air lock to be air tiight. thanks
Ours say 'Vintage Shop' on them, so if these are the same as the ones you already have, they will not work.
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