Our carbonation cap is made of 304 stainless steel material and liquid ball lock is made of high-quality plastic material, sturdy and durable to use. With this cap you can simply fill an old PET bottle with cold liquid of your choice and carbonate by connecting your Liquid ball lock disconnect. It is designed to fit most soft drink PET bottles. So you could make your own soda water, carbonate beer or other soft drinks, easy and convenient. Features:The carbonation cap is made from 304 stainless steel material, and it is a highly effective method to add and maintain carbonation in beverages for extended periods of time.This carbonation cap is a screw-on cap with an integrated Cornelius ball lock fitting.It is designed to fit onto most soft drink PET bottles.With this cap you can simply fill an old PET bottle with cold liquid of your choice and carbonate by connecting your Liquid ball lock disconnect.Making your own soda water, carbonate beer, or even making your own soft drinks. Specification: Condition: 100% Brand New Material: Stainless steel + Plastic Color: Sliver + White Carbonation Cap Size: 6 x 3.2 cm / 2.4 x 1.26inch (appr.)Liquid Ball Lock Size: 5.5 x 3.6cm / 2.17 x 1.42 inch (appr.)Liquid Ball Lock Under Diameter: 2.9 cm / 1.41 inch (appr.)Liquid Ball Lock Top Diameter: 2.3 cm / 0.91 inch (appr.) Package Included: 1 x Carbonation Cap 1 x Liquid Ball Lock Features ⭐Elevated Beverage Bliss: Crafted from premium 304 stainless steel, our Carbonation Cap is your key to unlocking the secrets of perfect carbonation. With its efficient design, it infuses and preserves carbonation in your drinks, ensuring that refreshing fizz lasts longer, sip after delightful sip. ⭐Effortless Carbonation Control: Meet the Carbonation Cap - a screw-on marvel that Features an integrated Ball Lock fitting. With this cap in your hands, carbonating your beverages becomes a breeze. Effortlessly control the level of carbonation to suit your taste, from lightly sparkling to fully effervescent. ⭐Universal Compatibility: Engineered with meticulous precision, this cap effortlessly adapts to the vast majority of PET soft drink bottles, making it a versatile companion for your homebrewing adventures. Convenience takes center stage as you elevate your beverage game to new heights. ⭐Transform Ordinary into Extraordinary: With the Carbonation Cap, you can turn ordinary PET bottles into bubbly delights. Simply connect the liquid Ball Lock Disconnect, and watch your favorite cold drinks transform into effervescent wonders. Say goodbye to flat sodas and hello to sparkling refreshment. ⭐Craft Your Own Beverage Magic: Unleash your inner mixologist and craft soda water, carbonate beer, or concoct your personal soft drinks—all within your reach and imagination. The Carbonation Cap empowers you to experiment, innovate, and create beverages that tickle your taste buds and delight your senses.