--- product_id: 83540151 title: "3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap" brand: "ld carlson" price: "8.20 DT" currency: TND in_stock: false reviews_count: 6 url: https://www.desertcart.tn/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon store_origin: TN region: Tunisia --- # Secure Fit for Threaded-Neck Carboys Universal Blue Cap for 6.5 Gallon Carboys 3-Piece Airlock Design for Precision Fermentation 3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap **Brand:** ld carlson **Price:** 8.20 DT **Availability:** ❌ Out of Stock ## Summary > 🔵 Lock in your brew’s future with precision and style! ## Quick Answers - **What is this?** 3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap by ld carlson - **How much does it cost?** 8.20 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon) ## Best For - ld carlson enthusiasts ## Why This Product - Trusted ld carlson brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Blue Cap:** Vibrant blue cap not only looks sleek but fits universally on 6.5 gallon carboys for seamless compatibility. - • **Pressure-Ready Seal:** Cap holds firm enough to handle gentle pressure transfers, giving you professional-level brewing confidence. - • **Exclusive Compatibility:** Designed exclusively for 6.5 gallon carboys—not compatible with Better Bottles—so you know it’s tailored for your setup. - • **Perfect Fit, No Compromise:** Specifically engineered to snugly seal 6.5 gallon threaded-neck carboys, ensuring airtight fermentation. - • **Precision Fermentation Control:** 3-piece airlock design allows optimal gas release while preventing contamination—your brew’s best guardian. ## Overview This 3-piece cylinder airlock with a universal blue cap is tailored for 6.5 gallon threaded-neck carboys, providing a secure, airtight seal that supports controlled fermentation. Its precision design allows safe gas release while preventing contamination, making it a must-have for serious homebrewers seeking professional results. ## Description Blue Cap for 6.5 Gallon Carboys and 3-piece airlock, Not For Use With Better Bottles Review: Works great - Great product-fits a 6.5 gallon threaded-neck (acid) carboy snugly enough that I could pressure transfer to a keg with about 2 pounds of pressure (I would not recommend that, but I did it anyway). I would buy again if I needed another. Review: Extremely difficult to get on a 6 gallon carboy - I did eventually get it on the carboy after SEVERAL attempts, finally getting it over the lip gently starting on one side and sliding the opposite side down the edge of a VERY slim and narrow blade angled outward, because it wouldn't ever go over the lips on its own. It's been down there a week. I'm afraid to touch it, definitely not stable - but I'm hoping the cap will stretch a little with repeated use. Outside of that - the concept looks good. ## Features - Blue Cap for 6.5 Gallon Carboys - 3-piece airlock - Not For Use With Better Bottles - Will only fit 6.5 gallon Carboys ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06W55V3DK | | Best Sellers Rank | #461,168 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #98 in Brewing & Fermentation Airlocks | | Customer Reviews | 4.0 4.0 out of 5 stars (22) | | Date First Available | February 14, 2017 | | Is Discontinued By Manufacturer | No | | Item Weight | 2.08 ounces | | Item model number | 8541954552 | | Manufacturer | LD Carlson | | Product Dimensions | 2.5 x 2.5 x 5 inches | ## Images ![3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap - Image 1](https://m.media-amazon.com/images/I/51kZ180q9GL.jpg) ![3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap - Image 2](https://m.media-amazon.com/images/I/51TliAnoQnL.jpg) ![3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap - Image 3](https://m.media-amazon.com/images/I/61fdgKdV7aL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great *by J***N on June 3, 2023* Great product-fits a 6.5 gallon threaded-neck (acid) carboy snugly enough that I could pressure transfer to a keg with about 2 pounds of pressure (I would not recommend that, but I did it anyway). I would buy again if I needed another. ### ⭐⭐⭐ Extremely difficult to get on a 6 gallon carboy *by P***O on March 18, 2023* I did eventually get it on the carboy after SEVERAL attempts, finally getting it over the lip gently starting on one side and sliding the opposite side down the edge of a VERY slim and narrow blade angled outward, because it wouldn't ever go over the lips on its own. It's been down there a week. I'm afraid to touch it, definitely not stable - but I'm hoping the cap will stretch a little with repeated use. Outside of that - the concept looks good. ### ⭐⭐⭐⭐⭐ Fit my 6.5 Italian threaded carboy *by J***J on May 31, 2023* The air lock is an added benefit I guess...didn't really need it though. ## Frequently Bought Together - 3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap - Fermentology Carboy Caps – 4 Pk Silicone Caps for Fermenting in 3/5/6 Gallon Glass Jugs – Homebrew Wine, Beer, Mead - Midwest Homebrewing and Winemaking Supplies Stainless Steel Racking Cane (30") --- ## 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.tn/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon](https://www.desertcart.tn/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-02*