---
product_id: 267460145
title: "W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320)"
brand: "regun"
price: "€ 22.42"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/267460145-w21-8-cga320-adapter-co2-cylinder-tank-w21-8-cga320
store_origin: CY
region: Cyprus
---

# Aquarium compatible Easy installation Durable brass material W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320)

**Brand:** regun
**Price:** € 22.42
**Availability:** ✅ In Stock

## Summary

> 🔄 Upgrade Your Aquarium Game!

## Quick Answers

- **What is this?** W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320) by regun
- **How much does it cost?** € 22.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/267460145-w21-8-cga320-adapter-co2-cylinder-tank-w21-8-cga320)

## Best For

- regun enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from high-quality brass for unmatched durability.
- • **Transform Your Setup:** Easily convert your W21.8 to CGA320 for seamless integration.
- • **User-Friendly Design:** No special skills needed—just twist by hand for a quick setup.
- • **Whisper-Quiet Operation:** Enjoy a stable and silent experience in your aquarium.
- • **Versatile Sizing Options:** Choose from two sizes to perfectly fit your needs.

## Overview

The W21.8 CGA320 Adapter is a high-quality brass converter designed to connect paintball CO2 tanks to your existing keg system CO2 regulator, ensuring a stable and quiet operation for your aquarium. With easy hand installation and two size options, it's the perfect addition for any aquarium enthusiast.

## Description

Specification: Condition: 100% Brand New Material: brass  Color: as pictures shown  Type: 1, 2(optional) Type1: W21.8 convert to CGA320 Type2: CGA320 convert to W21.8 Diameter: 2.8cm/1.1in  Package list: 1 * CO2 Tank Adapter

## Features

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

## Images

![W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320) - Image 1](https://m.media-amazon.com/images/I/51-GSGMOeAL.jpg)
![W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320) - Image 2](https://m.media-amazon.com/images/I/51+F805771L.jpg)
![W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320) - Image 3](https://m.media-amazon.com/images/I/61RT+6FsogL.jpg)
![W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320) - Image 4](https://m.media-amazon.com/images/I/51utqHEsS9L.jpg)
![W21.8 CGA320 Adapter - CO2 Cylinder Tank W21.8 CGA320 Adapter Converter for Aquarium Fish Tank(W21.8 Turn toCGA320) - Image 5](https://m.media-amazon.com/images/I/51Vqrljs5YL.jpg)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-04-23*