These polyethylene caps are suitable for various industries and produce good sealing effects. They are suitable for sealing glass grow bottles, beer bottles, brewing containers, fermenting and brewing beer, wine, etc., making beer easy to carry on the road. Widely used in screw caps of soft and hard packaging bottles and hoses of various daily chemicals, food, cosmetics,-growler, glass gallon jug, round transparent glass planting cups, fermentation and film-forming chemicals.

Specification
Material: phenolic resin, polyethylene
Colour: Black
Inside Diameter: 33 mm / 1.3 inch
Outer Diameter: 36.4 mm / 1.43 inch
High: 12.5 mm / 0.49 inch

Advantage: Our-growler covers are made of phenolic resin and polyethylene materials, which can withstand the pressure of fermentation. Reusable and easy to clean. Good sealing helps maintain the freshness of the craft beer.

Instruction: The black polyethylene sealing screw cap has a raised ridge around the entire circumference, making it easier to hold and seal. Insert the phenolic resin cover into the sealing area to form a tight seal to prevent liquid leakage, providing you with good closure and airtightness for easy item storage.

NOTE: Please pay attention to whether the outer diameter of the bottle mouth matches the inner diameter of the bottle cap. Our store has different styles, sizes, colors, and quantities to choose from.