38mm Poly Screw Cap W/Hole For Gallon Jug

$0.95
* Unit price: $0.00 /
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This reusable 38 mm screw cap will fit 1 gallon and 1/2 gallon jugs and Growlers. It is made of plastic and has a hole in the middle, which works best with a 3 piece airlock. Perfect for small batch experiments or yeast starters.

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