£19.99
Key Facts
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Compatible with TR21-4 (Blue) Cylinders
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Fits SodaStream Quick-Connect Machines - Works perfectly with Terra, Art, Duo, and other pink-cylinder models
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Save Money - Continue using your existing cylinders instead of switching to the new Quick-Connect type
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Easy Installation - No tools required; simply screw in and click into place
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Safe and Reliable - Built from high-quality materials for secure, leak-free performance
Description
Got a stockpile of SodaStream Blue screw-in (TR21-4) cylinders? Don't let them go to waste! Our SodaStream Adapter lets you use traditional Blue screw-in CO2 cylinders with the latest Pink Quick-Connect machines, including Terra, Art, and Duo.
Perfect for anyone upgrading to a new machine but not ready to throw away perfectly good cylinders. Reuse what you already have - and save!
Perfect for anyone upgrading to a new machine but not ready to throw away perfectly good cylinders. Reuse what you already have - and save!
Customer Reviews
Average Rating
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Andrew W.
12th Jun 2026Works well. It leaked to start with but I'd not realised once the two parts are clicked together in the machine that you then need to tighten the cylinder into the adapter. All fine after that. Works well. It leaked to start with but I'd not realised once the two parts are clicked together in the machine that you then need to tighten the cylinder into the adapter. All fine after that. -
Cherry H.
8th Jun 2026Exactly what I wanted. Perfect. Exactly what I wanted. Perfect. -
Rose C.
16th May 2026Fits perfectly. Definitely worth getting. Fits perfectly. Definitely worth getting. -
Joe L.
10th Apr 2026Does exactly what it's supposed to and I can use my old blue CO2 tanks with my new Terra SodaStream machine Does exactly what it's supposed to and I can use my old blue CO2 tanks with my new Terra SodaStream machine -
Ann-sofie E.
31st Mar 2026Fast and secure delivery Fast and secure delivery -
Paul J.
7th Mar 2026It fits perfectly, with no leaks, and works exactly as it should. It fits perfectly, with no leaks, and works exactly as it should. -
Thomas C.
17th Jan 2026Fast delivery and works perfectly! Fast delivery and works perfectly! -
Kevin H.
15th Jan 2026This adapter works exactly as expected and it fits well, with no leaks, and saves me from buying all new tanks. This adapter works exactly as expected and it fits well, with no leaks, and saves me from buying all new tanks. -
Ray M.
26th Oct 2025Works as advertised and installation was simple. Works as advertised and installation was simple. -
Francois B.
12th Aug 2025No leaks, fits well, and feels sturdy. Really glad I picked this up. No leaks, fits well, and feels sturdy. Really glad I picked this up.
