Plastic polyseal screw caps are designed to work beautifully with beer growlers and gallon jugs. These black plastic caps are lined with a poly-cone interior aiding in an exceptionally tight seal. Made from an oil-resistant plastic, these growler caps feature a 38mm threading. A great replacement cap for breweries, distributors and even home brewers! Sold in packs of 4.

Features:

• Perfect for standard 38mm beer growlers / gallon jusgs
• Features a polyseal interior
• Contructed from durable oil-resistand plastic
• Cap diameter: 1 1/2"
• Sold in packs of 4