Item Type: Cylinder Refill Adapter Material: Brass Color: Silver Weight: Approx. 439g / 15.5oz Interface type and applicable country: A: Atmospheric bottle W21.8 and soda vial(21x4)- W21.8-14: South Korea, Japan, Britain, Germany, France, Poland, Rowe, Switzerland, Russia, Ukraine, Blue Africa, Sweden, Chile, Czech Republic, Singapore B: Atmospheric bottle G1/2 with soda vial 21x4-G1/2-14: United States, Canada, Brazil, Colombia, Philippines 1、This adapter is precise machined from brass material, and the surface is polished and electroplated. 2、With a pressure relief valve, the residual gas in the adapter can be safely released after refilling. 3、Easy to disassemble, convenient to safely fill carbon dioxide from larger tanks. 4、With a pressure gauge, it can make sure that the pressure does not exceed the pressure specification of the receiving tank. 5、Suitable for atmospheric bottle W21.8 to soda vial 21x4 of Korea, Japan, UK, Germany, France, Poland, Lowe, Switzerland, Russia, Ukraine, Blue Africa, Sweden, Chile, Czech Republic, Singapore. 6、And it can be used for the atmospheric bottle G1/2 Vial 21x4 of USA, Canada, Brazil, Colombia and Philippines. 1 x Cylinder Refill Adapter 2 x Wrench 3 x Large Gasket 2 x Small Gasket 1 x Screw Accessory 1 x Manual