38 mm Screw Cap with Hole
38 mm Screw Cap with Hole

38 mm Screw Cap with Hole

$1.69
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Product details

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

⚠ Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

Additional information

SKU

42778
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Customer Reviews

Based on 24 reviews
29%
(7)
33%
(8)
21%
(5)
8%
(2)
8%
(2)
O
Op
It does the job.

I works just fine, but unfortunately it breaks easily so be careful not to push the air lock down too much. Great customer service I got a replacement immediately!!

N
Nishant D.
Good Cap, But Fragile

These caps work as advertised, but they tend to crack. Definitely buy extras.

A
Anh N.
Great Fit!

Fits great with my 1 gal glass carboy and 3-piece airlock after my first one cracked. Just got to be careful when fitting the airlock in... but I also bought 3 for good measure ;)

P
Patty L.
Perfect fit!

Ordered to replace a cracked screen cap for my 1 gal carboy. Fits perfectly with both airlock and jar mouth and it's not cracked (SUPER BONUS!). Mine hasn't cracked yet, but it's currently on its first use. I did order a backup and a rubber stopper just in case.

B
Billy G.
Red cap with hole

Cracked right away, and was not air secure.

123

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38 mm Screw Cap with Hole

38 mm Screw Cap with Hole

Customer Reviews

Based on 24 reviews
29%
(7)
33%
(8)
21%
(5)
8%
(2)
8%
(2)
O
Op
It does the job.

I works just fine, but unfortunately it breaks easily so be careful not to push the air lock down too much. Great customer service I got a replacement immediately!!

N
Nishant D.
Good Cap, But Fragile

These caps work as advertised, but they tend to crack. Definitely buy extras.

A
Anh N.
Great Fit!

Fits great with my 1 gal glass carboy and 3-piece airlock after my first one cracked. Just got to be careful when fitting the airlock in... but I also bought 3 for good measure ;)

P
Patty L.
Perfect fit!

Ordered to replace a cracked screen cap for my 1 gal carboy. Fits perfectly with both airlock and jar mouth and it's not cracked (SUPER BONUS!). Mine hasn't cracked yet, but it's currently on its first use. I did order a backup and a rubber stopper just in case.

B
Billy G.
Red cap with hole

Cracked right away, and was not air secure.

123