Chihiros CO2 Soda Adapter
- High quality adapter
- Standard thread W 21,8 x 1/14"
- Suitable for W21.8 regulators
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Description
The CO2 Soda Adapter (TR21/4 to W21.8) from Chihiros is a connecting element designed for using CO2 cylinders with a TR21/4 thread on pressure regulators with a W21.8 connection thread. These types of cylinders are commonly known from systems such as Sodastream. The adapter enables the use of these smaller, widely available CO2 bottles in combination with standard CO2 pressure regulators.
The adapter is made from solid metal. The precisely manufactured threads ensure a secure and gas-tight connection. A suitable sealing ring is included and ensures that no CO2 escapes. The adapter is screwed directly onto the CO2 cylinder. The pressure regulator is then attached to the external thread of the adapter.
This adapter is intended solely for use with CO2 cylinders in an upright position. Operation in a horizontal position is not supported. For this reason, an angled adapter is not available. This limitation must be taken into account when planning the CO2 system.
The product is suitable for use in CO2 supply systems where space is limited or the use of small CO2 cylinders is preferred. The pressure regulator used must have a W21.8 connection thread.

Interior view of head thread

Interior view of lower thread
Features
- Adapter for CO2 cylinders with TR21/4 thread (e.g. Sodastream)
- Compatible with pressure regulators with W21.8 thread
- Suitable for compact CO2 supply systems in aquascaping
- Includes sealing ring for gas-tight connection
- Made from durable metal for long-term use
- Appropriate for small tanks and limited installation space
- Manual installation without additional tools
Application
The adapter is screwed manually onto a CO2 cylinder with a TR21/4 thread. The included sealing ring must be inserted correctly. In the next step, the pressure regulator with a W21.8 connection is mounted onto the adapter. After tightening both threaded connections, the system is ready for operation. It must be ensured that the cylinder remains upright during use.
Chihiros
Chihiros Aquatic Studio is a technology company specialised in aquatic products. Since the foundation in 2014 the name Chihiros has produced some significant waves. Through good quality and an excellent price-performance ratio, a sustainable and growing influence on the market of aquaristic technology could be achieved. With innovative ideas, such as lamps that can be controlled via Bluetooth and WIFI, chic designs and, above all, a lot of technology at attractive prices, Chihiros has been able to secure a firm place in many living rooms and hearts of aquarium enthusiasts. In addition to LED lamps, the product range also includes accessories for aquarium filters, tools and glassware.
Manufacturer information
| Manufacturer | |
|---|---|
| Name | Shanghai Ogino Biotechnology Co., Ltd. CIXI branch |
| Street | Gaoke Avenue No. 598, Buildng 7, Room 1-1 |
| City | Xixi High-tech Industrial Development Zone |
| State | Zhejiang Province |
| Country | China |
| chihiros@chihiros.cn | |
| Website | www.chihirosaquaticstudio.com |
| Responsible person | |
|---|---|
| Name | AS Aquaristik & Heimtierbedarf GmbH & Co. KG |
| Street | Gewerbering 19 |
| City | 86931 Prittriching |
| State | Bayern |
| Country | Deutschland |
| as@as-aquaristik.de | |
| Website | www.as-aquaristik.de |
General information
| Item no. |
|
| EAN | 4043366500384 |
| Weight | 0,04 kg |
| Shipping weight | 0,05 kg |
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