CO2 Quick Fill Connector TR21-4 for SodaStream Cylinders
CO2 Quick Fill Connector TR21-4 for SodaStream Cylinders
SodaStream Compatible CO2 Cylinder Quick Fill Connector – TR21-4 Threaded, Micro-Adjustable Valve
Take your home brewing and carbonation setup to the next level with this precision-engineered Quick Fill Connector for SodaStream-compatible CO2 cylinders. Featuring a standard TR21-4 thread and an integrated 8mm male plug, this metal connector makes refilling your soda tank fast, secure, and hassle-free — no tools required.
Whether you're carbonating water, crafting homemade sodas, or using a cream whipper pressure regulator setup, this micro-adjustable valve connector delivers reliable, controlled gas flow rated up to 3,000 PSI operating pressure. The durable all-metal construction ensures long-lasting performance even under frequent use.
Made in Mainland China.
Key Features
- TR21-4 Threaded Design — Compatible with standard SodaStream-style CO2 cylinders and soda tanks
- 8mm Male Plug — Provides a secure, leak-resistant connection for efficient gas transfer
- 3,000 PSI Operating Pressure — Built to handle high-pressure CO2 applications safely
- Micro-Adjustable Valve — Fine-tune gas flow for cream whippers, soda makers, and trimmer pressure reducing setups
- All-Metal Construction — Durable, food-contact safe, and built for repeated use
- Quick-Release Mechanism — Effortlessly connect and disconnect your CO2 cylinder
- Versatile Use — Suitable for home brewing, carbonation, cream frother reducing valves, and more
Specifications
| Material | Metal (Silver) |
| Thread Type | TR21-4 |
| Plug Size | 8mm Male |
| Operating Pressure | Up to 3,000 PSI |
| Food Contact Safe | Yes |
| Origin | Mainland China |
Package Contents
- 1 × Quick Fill Adjusting Connector
Note: Gas cylinder is NOT included. Installation guide not included. Due to different production batches, minor visual or colour differences may occur — this does not affect functionality. Measurement tolerance: ±1–3 cm.
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Learn more: Nutrition.gov on cooking and food safety
Frequently Asked Questions
Q: Is this quick fill connector compatible with all SodaStream CO2 cylinders?
A: This connector is designed to be compatible with SodaStream-style CO2 soda cylinders that use a TR21-4 thread. Please verify your cylinder's thread type before purchasing to ensure a proper fit.
Q: What is the maximum operating pressure this connector can handle?
A: This quick fill connector is rated for up to 3,000 PSI, making it suitable for standard CO2 cylinder refilling and carbonation applications used in home brewing and soda making.
Q: Can this connector be used with a cream whipper or pressure regulator?
A: Yes — in addition to soda cylinder use, this connector is compatible with cream whipper pressure regulator and trimmer pressure reducing valve setups, thanks to its micro-adjustable valve design.
Q: Is the gas cylinder included with this product?
A: No — only the quick fill adjusting connector is included. The gas cylinder must be sourced separately.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.