CO2 transfer adapter is made of aluminium, which is safe and corrosion resistant and ensures long-term use. The CO2 Refill Adapter With a 2000 psi pressure gauge, you can monitor the pressure during installation and the safety of the inflatable process. The built-in safety pressure valve prevents leakage on the cylinder. Compatible Models: Compatible with for Duo, Art, Terra soda maker or soda Cylinder Refill gas. Connect the Co2 Refill Adapter to your Co2 cylinder in a few simple steps and perform the simple inflation . Portable size allows you to bring to any outdoor barbeque, party, or get together. Material: aluminum colour: silver Package Contents: 1 x CO2 Cylinder Refill Fill Station Adapter With pressure gauge 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.