W21.8 to TR21.4 Converter for Soda Bottle Refills, Compact Compatibility Kit Universal CO2 Cylinder Adapter Condition: 100% Brand NewItem Type: CO2 Refill AdapterMaterial: Stainless Steel + CopperColor: SilverThread: W21.8 to TR21.4Package Size: Approx. 11 x 7 x 4 cm / 4.3 x 2.8 x 1.6 inProduct Size: Approx. 8 x 4 x 3 cm / 3.1 x 1.6 x 1.2 inWeight: Approx. 373g / 13.2oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }