Black Polypropylene Screw Cap with Foam Liner, 28-400 Size, Fits Many 16oz & 32oz Bottles Including Boston Rounds, Good for Kombucha, Juice, Pack of 12 (Bottles Not Included)

Upgrade your bottling experience with The Kombucha Company Black Polypropylene Screw Caps, designed to fit most 16oz and 32oz bottles with a 28-400 neck size, including standard Boston Round bottles. Whether you're brewing kombucha, bottling fresh juice, storing homemade beer, or packaging small-batch creations, these durable caps deliver a secure and reliable seal every time. Each cap features a high-quality PE foam liner that helps prevent leaks, maintain freshness, and preserve carbonation for short-term storage. Made from food-safe, BPA-free polypropylene (PP), these caps are lightweight yet strong enough for everyday use in home brewing, commercial kitchens, and juice bars. With a clean, professional black finish, they pair perfectly with clear, amber, or cobalt bottles—giving your product a modern and polished appearance. Sold in a convenient pack of 12, these caps are ideal for small-scale production, refills, sampling, or organizing liquids around the home. Bottles are not included.

• ✔️ Perfect 28-400 Fit for Popular Bottles Designed to fit most 16oz and 32oz bottles, including standard Boston Round styles. Ideal for kombucha, juice, beer, extracts, and more.
• ✔️ Leak-Resistant Foam Liner Each cap features a PE foam liner that creates a tight, reliable seal to help prevent leaks, maintain freshness, and protect carbonation during short-term storage.
• ✔️ Durable, Food-Safe Polypropylene Made from BPA-free, food-grade PP, these lightweight yet sturdy caps are built for repeated use in homebrewing, commercial kitchens, and product bottling.
• ✔️ Professional Black Finish A sleek matte-black design gives your bottles a clean, polished look—perfect for retail packaging, small businesses, or organized home storage.
• ✔️ Convenient Pack of 12 (Bottles Not Included) Cost-effective bulk pack offers great value for brewers, makers, and DIY bottlers looking to stock up on reliable, high-quality lids.