Key features

• •Universal Compatibility for Sparkling Water Makers: This CGA320 to TR21-4 adapter hose fits most soda makers, compatible with Fizzi One Touch, JET, Aqua Fizz with blue canisters(Old), Geneis, Source, DrinkMate, Aarke, Philips, and Ninja Thirsti. (Not compatible with Art, Terra, Gaia, Aquia Fizz(New) or DUO pink systems). Works with gaseous CO2 only—liquid CO2 may affect taste.
• •Heavy-Duty Stainless Steel & Brass Construction: The braided stainless steel hose protects against rust and abrasion while the brass/aluminum fittings ensure high-temperature durability (up to 212°F/100°C). Food-grade rubber seals prevent leaks. Rated for 4500 PSI—no tube explosion or expansion issues.
• •Save 70%+ on CO2 Refills: Skip expensive small CO2 cartridges—this CGA320 to TR21-4 adapter hose connects directly to 5lb, 20lb, or 50lb commercial CO2 tanks (CGA-320 valve). No permanent modifications needed—just attach & carbonate instantly!
• •Quick-Install, No-Tools Design: Simply screw onto your CO2 tank & soda maker—no technical skills required. The upgraded airtight design prevents gas leaks, ensuring consistent carbonation every time.
• •What You Get: Package includes 1 pc tank cartridges hose, 2 pcs dust-proof covers and 3 pcs gaskets. Please note that to improve the gas tightness, please tighten the connection to the CO2 reservoir with a spanner. Also, if you find that the hose is leaking after a period of use, the gasket may be worn out. Please replace the gasket with a new one.