--- product_id: 617682039 title: "MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings" price: "€ 20.03" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.hr/products/617682039-mrbrew-stainless-steel-carbonation-cap-ball-lock-keg-post-5 store_origin: HR region: Croatia --- # Snug 2L PET bottle fit Universal ball lock fit 60 PSI airtight seal MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings **Price:** € 20.03 **Availability:** ✅ In Stock ## Summary > 🍺 Lock in freshness, unleash flavor—brew like a pro! ## Quick Answers - **What is this?** MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - **How much does it cost?** € 20.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/617682039-mrbrew-stainless-steel-carbonation-cap-ball-lock-keg-post-5) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rock-Solid 60 PSI Seal:** Keeps carbonation locked in, no leaks, no compromises. - • **Precision 2L Bottle Fit:** Screws on smoothly with perfect threading for a leak-proof experience. - • **Universal Ball Lock Ready:** Seamlessly connects with all gas & liquid disconnects for ultimate versatility. - • **Multi-Use Homebrew Essential:** Perfect for carbonation, cleaning, and on-the-go refreshment—your brew’s best companion. - • **Premium 304 Stainless Steel Build:** Rust-resistant, food-safe, and built to last through every brew session. ## Overview The MRbrew Stainless Steel Carbonation Cap is a durable, high-performance accessory designed for homebrewers. It withstands up to 60 PSI with an airtight seal, fits standard 2L PET bottles with precision threading, and features universal ball lock compatibility for easy gas and liquid connections. Made from premium 304 stainless steel and food-grade seals, it ensures safe, rust-free use while enhancing carbonation, bottle conditioning, and cleaning efficiency. ## Description Product description ## Features - ✅ Withstands 60 PSI : Built for high performance, the MRbrew carbonation cap holds up to 60 PSI without leaking. This cap features a large flat gasket and upgraded O-ring for a completely airtight seal—ensuring your beer stays fresh and carbonated overnight. Ideal for force carbonation and bottle conditioning. - ⚙️ Universal Ball Lock Compatibility: Designed for versatility, the integrated keg post connects easily with both gas and liquid ball lock disconnects. The removable 5/16” beer barb supports both carbonation and liquid transfers—perfect for homebrew cleaning systems too. All parts are pre-assembled and secure, so there's no risk of accidental disassembly. - 🧊Snug Fit for Standard 2L Soda Bottles: Featuring precise 1-1/8-8UN threading, this carbonation cap screws onto most 2-liter PET soda bottles securely and smoothly. Creates a leak-proof seal without excessive torque, making it an excellent tool for homebrewers who want to keep beverages carbonated longer and fresher. - 🛡Premium 304 Stainless Steel & Food-Grade Seals: Crafted from high-quality 304 stainless steel, food-safe rubber, and silicone, this carbonation cap ensures long-lasting performance without rust, odors, or sharp edges. All sealing gaskets are perfectly fitted and stay in place during use, keeping your drinks clean and safe. - 🍻Perfect for Homebrew: Re-carbonate soda, beer, or cold brew on the go—ideal for BBQs, tailgates, camping, or holiday parties. Also works great for running cleaner through beer lines using a small bottle setup, minimizing CO₂ waste compared to cleaning with a full keg. A must-have for every mobile homebrewer. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #533,949 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #313 in Soda Maker Parts & Accessories | | Customer Reviews | 4.6 out of 5 stars 207 Reviews | ## Images ![MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - Image 1](https://m.media-amazon.com/images/I/61TLdCMckTL.jpg) ![MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - Image 2](https://m.media-amazon.com/images/I/61QSkxu8FAL.jpg) ![MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - Image 3](https://m.media-amazon.com/images/I/61WNYP5g5sL.jpg) ![MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - Image 4](https://m.media-amazon.com/images/I/61oNWuzo7sL.jpg) ![MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - Image 5](https://m.media-amazon.com/images/I/61syV7sV4rL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by T***R on August 20, 2017* ### ⭐⭐⭐⭐⭐ Review *by A***R on March 6, 2025* ### ⭐⭐⭐⭐⭐ Review *by 4***N on February 2, 2021* ## Frequently Bought Together - MRbrew Stainless Steel Carbonation Cap, Ball Lock Keg Post 5/16'' Beer Line Nipple Barb & CO2 Coupling for Soda Drink, PET Bottles Counter Pressure Bottle Filling Cap with Gasket & O-Rings - Dbgogo Hold Stable Pressure 0-60 PSI Mini Keg Regulator, No Leaking Portable Cornelius Corny Beer Growler Outdoor Picnic Party Carbonation CO2 Gas Ball Lock Disconnect Mini keg Charger Regulator - Coopers DIY Beer 740ml Oxygen Barrier Home Brewing Beer Bottling Set, Qty. 15, Brown --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/617682039-mrbrew-stainless-steel-carbonation-cap-ball-lock-keg-post-5](https://www.desertcart.hr/products/617682039-mrbrew-stainless-steel-carbonation-cap-ball-lock-keg-post-5) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*