---
product_id: 138508302
title: "CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2)"
brand: "fdit1"
price: "3 zł"
currency: PLN
in_stock: false
reviews_count: 3
url: https://www.desertcart.pl/products/138508302-co2-cylinder-tank-w21-8-cga320-adapter-converter-for-aquarium
store_origin: PL
region: Poland
---

# Aquarium compatible Durable brass Easy installation CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2)

**Brand:** fdit1
**Price:** 3 zł
**Availability:** ❌ Out of Stock

## Summary

> Transform Your Aquarium Experience! 🌊

## Quick Answers

- **What is this?** CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2) by fdit1
- **How much does it cost?** 3 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/138508302-co2-cylinder-tank-w21-8-cga320-adapter-converter-for-aquarium)

## Best For

- fdit1 enthusiasts

## Why This Product

- Trusted fdit1 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium brass for long-lasting durability.
- • **User-Friendly Design:** No special skills needed—just twist to install!
- • **Seamless Compatibility:** Easily connects paintball CO2 tanks to your keg system.
- • **Whisper-Quiet Operation:** Enjoy a tranquil aquarium environment with no noise.
- • **Versatile Sizing Options:** Choose from two sizes to perfectly fit your setup.

## Overview

The CO2 Cylinder Tank W21.8 CGA320 Adapter Converter is a high-quality brass connector designed for seamless integration of paintball CO2 tanks with existing keg systems. It features an easy installation process, operates quietly, and is available in two sizes to suit your aquarium needs.

## Description

Features: 1. Made of high quality brass material, durable and long lasting.  2. It allows you to attach a paintball CO2 tank to your existing keg system CO2 regulator.  3. Stable, quiet and no noise. Can be used for CO2 regulator at the aquarium. 4. Easy to install, just twist by hand, no high installation skill required. 5. 2 sizes available, you can choose the right one you need. Great kits for your aquarium tank.  Specification: Condition: 100% Brand New Material: brass  Color: as pictures shown  Type: 1, 2(optional) Type1: W21.8(out thread) convert to CGA320(inner thread) Type2: CGA320(out thread) convert to W21.8(inner thread) Diameter: 2.8cm/1.1in  Package list: 1 * CO2 Tank AdapterNote: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.

## Features

- PREMIUM BRASS: Made of high quality brass material, durable and long lasting.
- MIAN FUNCTION: It allows you to attach a paintball CO2 tank to your existing keg system CO2 regulator.
- PRACTICAL: Stable, quiet and no noise. Can be used for CO2 regulator at the aquarium.
- EASY INSTALLATION: Easy to install, just twist by hand, no high installation skill required.
- 2 SIZES: 2 sizes available, you can choose the right one you need. Great kits for your aquarium tank.

## Images

![CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2) - Image 1](https://m.media-amazon.com/images/I/51rWBtAkhIL.jpg)
![CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2) - Image 2](https://m.media-amazon.com/images/I/61o1SuKStaL.jpg)
![CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2) - Image 3](https://m.media-amazon.com/images/I/516XXmGDPVL.jpg)
![CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2) - Image 4](https://m.media-amazon.com/images/I/61ULPlmJnzL.jpg)
![CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank CO2 tank W21.8 or CGA320 adapter converter(#2) - Image 5](https://m.media-amazon.com/images/I/61y5gJJ56gL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Not for use on a canister
  

*by P***Y on Reviewed in the United States on October 26, 2022*

I bought this with the intention of fitting my co2 regulator on a paintball canister.  This is its intended purpose according to its description as of 10/25/2022.  What I discovered when I received the item is that the adapter has nothing to depress the pin valve on the canister (it's just a hole in the middle).  Gas cannot exit the canister unless the pin valve is depressed.  Now I am depressed.  Build quality looks fine, but I am rating one star for the inaccurate description.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Clarification on #1 vs #2
  

*by Z***R on Reviewed in the United States on March 12, 2020*

Four stars for a poor product description, "converts" means different things to different people.Item #1 is female cga320 and male 21.8-14. Presumably #2 is the opposite.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Needs better English description
  

*by J***R on Reviewed in the United States on July 19, 2020*

#2 is a CGA320 male thread to W21.8 Female thread adapter.#1 is a CGA320 female thread to W21.8 Male thread adapter

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---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-26*