---
product_id: 83540151
title: "3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap"
brand: "ld carlson"
price: "฿978"
currency: THB
in_stock: true
reviews_count: 5
category: "Ld Carlson"
url: https://www.desertcart.co.th/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon
store_origin: TH
region: Thailand
---

# 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:** ฿978
**Availability:** ✅ In 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?** ฿978 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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 |
|---------------|-------|
| Best Sellers Rank | #258,380 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #65 in Brewing & Fermentation Airlocks |
| Customer Reviews | 3.7 out of 5 stars 22 Reviews |

## Images

![3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap - Image 1](https://m.media-amazon.com/images/I/51TliAnoQnL.jpg)
![3 Piece Cylinder Airlock with Universal Blue 6.5 Gallon Carboy Cap - Image 2](https://m.media-amazon.com/images/I/51kZ180q9GL.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")

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**Shop now:** [https://www.desertcart.co.th/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon](https://www.desertcart.co.th/products/83540151-3-piece-cylinder-airlock-with-universal-blue-6-5-gallon)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-22*