new design, dull polish of the , and an integral forming process, more reliable and beautiful. Use For Terra, DUO or ART Quick Connect Machines which suit your Tr21-4 soda machine connection. Also as a Terra DUO or ART machine to external tank Conneect Adapter. Attention! This item is does not fit for Australia and New Zealand soda bottles. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use material: metal Color as shown Package Contents: 1 x CO2 Quick Connector 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.