{"product_id":"sodastream-co2-cylinder-quick-fill-connector-tr21-4-micro-adjustable-valve","title":"CO2 Quick Fill Connector TR21-4 for SodaStream Cylinders","description":"\n\u003ch2\u003eSodaStream Compatible CO2 Cylinder Quick Fill Connector – TR21-4 Threaded, Micro-Adjustable Valve\u003c\/h2\u003e\n\u003cp\u003eTake your home brewing and carbonation setup to the next level with this precision-engineered \u003cstrong\u003eQuick Fill Connector for SodaStream-compatible CO2 cylinders\u003c\/strong\u003e. Featuring a standard \u003cstrong\u003eTR21-4 thread\u003c\/strong\u003e and an integrated \u003cstrong\u003e8mm male plug\u003c\/strong\u003e, this metal connector makes refilling your soda tank fast, secure, and hassle-free — no tools required.\u003c\/p\u003e\n\n\u003cp\u003eWhether 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 \u003cstrong\u003e3,000 PSI operating pressure\u003c\/strong\u003e. The durable all-metal construction ensures long-lasting performance even under frequent use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTR21-4 Threaded Design\u003c\/strong\u003e — Compatible with standard SodaStream-style CO2 cylinders and soda tanks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8mm Male Plug\u003c\/strong\u003e — Provides a secure, leak-resistant connection for efficient gas transfer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3,000 PSI Operating Pressure\u003c\/strong\u003e — Built to handle high-pressure CO2 applications safely\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicro-Adjustable Valve\u003c\/strong\u003e — Fine-tune gas flow for cream whippers, soda makers, and trimmer pressure reducing setups\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll-Metal Construction\u003c\/strong\u003e — Durable, food-contact safe, and built for repeated use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick-Release Mechanism\u003c\/strong\u003e — Effortlessly connect and disconnect your CO2 cylinder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use\u003c\/strong\u003e — Suitable for home brewing, carbonation, cream frother reducing valves, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal (Silver)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTR21-4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlug Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8mm Male\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 3,000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFood Contact Safe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Quick Fill Adjusting Connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: 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.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/100ml-glass-oil-spray-bottle-anti-leak-press-type-mister-for-bbq-salad-baking-kitchen-cooking-vinegar-dispenser-tool-1\"\u003e100ml Glass Oil Spray Bottle – Anti-Leak Press-Type Mister for BBQ, Baking \u0026amp; Kitchen\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/304-stainless-steel-dumpling-filling-spoon-wonton-filler-spatula-for-dumpling-wonton-making-home-kitchen-cooking-utensil\"\u003e304 Stainless Steel Dumpling Filling Spoon – Kitchen Cooking Utensil\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3-in-1-stainless-steel-vegetable-peeler-wooden-handle-fruit-peeling-knife-multifunctional-julienne-slicer-kitchen-gadget\"\u003e3-in-1 Stainless Steel Vegetable Peeler – Multifunctional Kitchen Gadget\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.nutrition.gov\/topics\/shopping-cooking-and-food-safety\" target=\"_blank\" rel=\"noopener\"\u003eNutrition.gov on cooking and food safety\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this quick fill connector compatible with all SodaStream CO2 cylinders?\u003c\/h4\u003e\n\u003cp\u003eA: This connector is designed to be compatible with SodaStream-style CO2 soda cylinders that use a \u003cstrong\u003eTR21-4 thread\u003c\/strong\u003e. Please verify your cylinder's thread type before purchasing to ensure a proper fit.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the maximum operating pressure this connector can handle?\u003c\/h4\u003e\n\u003cp\u003eA: This quick fill connector is rated for up to \u003cstrong\u003e3,000 PSI\u003c\/strong\u003e, making it suitable for standard CO2 cylinder refilling and carbonation applications used in home brewing and soda making.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this connector be used with a cream whipper or pressure regulator?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the gas cylinder included with this product?\u003c\/h4\u003e\n\u003cp\u003eA: No — only the \u003cstrong\u003equick fill adjusting connector\u003c\/strong\u003e is included. The gas cylinder must be sourced separately.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this quick fill connector compatible with all SodaStream CO2 cylinders?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This connector is designed to be compatible with SodaStream-style CO2 soda cylinders that use a TR21-4 thread. 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