Description
These heavy duty 38 mm screw caps will fit any bottle or jug with a 38-400 CT thread. They’re designed to seal exceptionally well and will prevent leaks or oxidation of your beverages. The cone shaped liner is made from an oil-resistant plastic that resists odors and chemicals in order to keep your products ultra-fresh.
These black screw caps are great for jugs, growlers, and more! We highly recommend using these over the standard metal growler cap for both a superior seal and preservation of your home brew.
38-400 (38/400) CT continuous thread screw caps
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