Product Description Features: *Fits many common CO2 cylinders which have the conventional trapezoidal thread CGA320, bottles with up to 60 liters and 425 g CO2. Made from robust and extra-light aluminum. Environmentally friendly, sturdy, high security, rustproof and durable. *Remove the pink piece from the bottom of the Terra Water Maker by pressing in the pins as shown provided and pulling the device downwards. With the DUO and ART bubblers, a small piece of the housing in the cylinder compartment must be cut out so that the cylinder can be inserted into the compartment. Specifications: *Color: blue *Material: aluminum alloy, copper *Thread: CGA320 *Function: Connect CGA320 threaded cylinders to DUO and TERRA machines using quick-connect cylinders Package Contents: 1pcs Quick Connect Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Payment Payment must be completed within 5 days. If you have any problems about payment, please contact us via Delivery details We only ship to confirmed Order addresses. Please comfirm that your Order address is in line with your shipping address. Please kindly note that the c ombined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. It takes about 7 -15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection . If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance. Contact us We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, p lease feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.