---
product_id: 524753700
title: "HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories"
brand: "hk"
price: "€ 48.32"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/524753700-hk-quick-adapter-for-co2-soda-water-bubbler-for-terra
store_origin: CY
region: Cyprus
---

# TR21-4 male thread compatibility Upgraded threaded design for universal CO2 fit Durable corrosion-resistant aluminum build HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories

**Brand:** hk
**Price:** € 48.32
**Availability:** ✅ In Stock

## Summary

> 💨 Effortless fizz, endless refreshment—upgrade your soda game today!

## Quick Answers

- **What is this?** HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories by hk
- **How much does it cost?** € 48.32 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/524753700-hk-quick-adapter-for-co2-soda-water-bubbler-for-terra)

## Best For

- hk enthusiasts

## Why This Product

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

## Key Features

- • **Save Time & Money:** Use large 60L refill CO2 bottles at home—skip store swaps and enjoy endless sparkling water freedom.
- • **Universal Upgrade:** Supports both old blue and new pink SodaStream CO2 bottles with an innovative threaded adapter design.
- • **Premium Durability:** Crafted from high-quality aluminum for long-lasting corrosion and oxidation resistance.
- • **Seamless Compatibility:** Connects original blue 425g CO2 cylinders with SodaStream Terra, Art, DUO & GAIA models effortlessly.
- • **Effortless Installation:** Quick-connect adapter installs in seconds—no tools, no hassle, just press and play.

## Overview

The HK Quick Adapter is a precision-engineered aluminum accessory that enables seamless connection of original 425g blue CO2 cylinders to SodaStream Terra, Art, DUO, and GAIA sparkling water makers. Featuring an upgraded threaded design compatible with both old and new SodaStream bottles, it offers quick installation and durable corrosion resistance. Perfect for professionals seeking convenience and cost savings by using large refillable CO2 bottles at home.

## Description

HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories

## Features

- Perfect CO2 Adapter: The CO2 adpater fit for Soda Stream DUO/Terra/Art/GAIA sparkling water maker, it is an adapter that can connect the soda terra machine and original blue Co2 Cylinder. You can also use this adapter to connect old soda hose with TR21-4 Male Thread to new soda terra water maker.
- Upgrade Design: Upgraded threaded design, you can use the old Soda stream Co2 bottles(blue) and the new Soda Stream CO2 bottles(pink) in the Soda stream Terra. Tips: this adapter only fit for Soda stream 425 gram blue CO2 cylinders, Not fit for other brands CO2 cylinders.
- Easy To Install: One end of the quick adapter connects to the Soda stream terra sparkling water maker, the other end of the TR21-4 connects to the Soda stream 60L CO2 cylinder.
- High Quality: The soda adapter is made of high quality aluminum, strong and durable, resistant to corrosion and oxidation.
- Convenient: You can continue use your large CO2 60 liter refill bottle and save yourself the hassle of swapping in the shop or no market near offers the new bottles,the time savings alone were worth it to you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model name | CO2 Quick Adapter |
| Size | / |
| Model Number | IT0376P-VTUS |
| Color | Silver |
| Package Dimensions | 6.81 x 4.09 x 4.09 cm; 50 g |
| Special Features | CO2 Quick Adapter |
| Item Weight | 50 g |

## Product Details

- **Brand:** HK
- **Colour:** Silver
- **Material:** Aluminum
- **Power source:** manual
- **Operation mode:** Automatic

## Images

![HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories - Image 1](https://m.media-amazon.com/images/I/61alCQX1kGL.jpg)
![HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories - Image 2](https://m.media-amazon.com/images/I/71za1XMCecL.jpg)
![HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories - Image 3](https://m.media-amazon.com/images/I/71c15Wuom+L.jpg)
![HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories - Image 4](https://m.media-amazon.com/images/I/71rEntYj7EL.jpg)
![HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories - Image 5](https://m.media-amazon.com/images/I/71F4b2x8ZNL.jpg)

## Available Options

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

## Questions & Answers

**Q: If adapter version A (using 8mm quick connect) doesn't come with the hose, where can I buy that?**
A: hi, dear friend, you can buy it by amazon.

**Q: what is the benefits of quick adaptation of carbonated drink refills?**
A: hi, dear friend, our CO2 cylinder inflation adapter is to inflate 60L pink CO2 cylinders through a hose, with this adapter, you can save time and money by not having to buy CO2 pink cylinders frequently or go to remote places to fill them.

**Q: what brand of bottle does this product fit?**
A: hi, dear friend, it fits for soda stream terra/art 60L Co2 cylinder(Pink), hope this answer can help you, have a nice day

**Q: how to use this CO2 refilling adapter?**
A: hi, dear friend, the installation as follow,
Before filling, you should make sure to have a soda hose.
1. Connect the CGA320 to big Co2 cylinder.
2. Put the O Ring on the 60L Co2 cylinder(Pink,Threadless).
3. Put the filling adapter on top of the valve, please pay attention that the gap should be aligned with the burst disc of the valve.
4. Screw the ring and filling adapter together.
5. Connect the soda hose to the male quick adapter of CO2 cylinder refill adapter.
6. Screw down the on/off valve, then open the big Co2 cylinder, the filling process is start now(last for 25-30S).
7. After Filling, turn off the big Co2 cylinder, then screw up the On/off valve to the top position.
8. Release the gas inside the soda hose. They you can disconnect the quick adapter and take off the refill adapter.
ATTENTION:
If your big Co2 cylinder don't have Siphon,please upside down your big Co2 cylinder before filling.

## Frequently Bought Together

- HK Quick Adapter for CO2 Soda Water Bubbler for Terra/Art/DUO Sparkling Water Maker, Connecting Original blue CO2 Cylinder with TR21-4 Male Thread Soda Maker Valve Refill Accessories
- SodaStream CO2 Gas Refill Pack - 2 Cylinders, Pink CQC System - Use box to return your empty cylinders and earn an Amazon.com Gift Card - Compatible with Terra, ART, E-Terra, Aqua Fizz and others
- SodaStream® Pepsi® Zero Sugar Beverage Mix (440ml, Pack of 4)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-18*