: This quick refill adapter is compatible with Terra machines, With this quick connect adapter, glass bottles for maker can be attached to the machine to work. You can keep using your glass bottle rather than plastic bottle and save 550 plastic bottles per year Upgraded Quick CO2 Adapter: Compatible with Terra Makers, with this quick adapter, you can decide for yourself whether plastic or glass bottles work with your maker. High Quality Durable Material: The co2 adapter is made of high quality material, corrosion, anti-rust durable and safe, surface polished to excellent sealing, high quality. Easy Installation: With just a few simple steps, your CO2 maker is ready to use with this quick adapter. Just screw this connect adapter onto the thread of the glass bottle, then connect the machine to use normally. Product Type: Quick CO2 Adapter for Water Maker Fits: Compatible with Terra Maker to CO2 glass bottles connection Function: With this quick adapter, you can continue to use traditional screw valve CO2 glass bottles. Easy to install Durable material Perfectly compatible Green economy Colour:black Material:plastic Package Contents: 1 x Refill Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.