38 mm Screw Cap with Hole
This reusable 38 mm screw cap will fit our 1 gallon, 1/2 gallon jugs, and beer growlers. It is made of plastic and has a hole in the middle, which works best with our 3 piece airlock - item 7010. Perfect for small batch experiments or yeast starters.
California Proposition 65
ā Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.
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Product Information
Shipping & Returns
Shipping & Returns


38 mm Screw Cap with Hole
38 mm Screw Cap with Hole
This reusable 38 mm screw cap will fit our 1 gallon, 1/2 gallon jugs, and beer growlers. It is made of plastic and has a hole in the middle, which works best with our 3 piece airlock - item 7010. Perfect for small batch experiments or yeast starters.
California Proposition 65
ā Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
This reusable 38 mm screw cap will fit our 1 gallon, 1/2 gallon jugs, and beer growlers. It is made of plastic and has a hole in the middle, which works best with our 3 piece airlock - item 7010. Perfect for small batch experiments or yeast starters.
California Proposition 65
ā Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.













