Features 1、CO2 cylinder filling adapter, made of high‑quality materials and is durable. 2、W21.8‑14 // TR21‑4 threaded connection, with good airtightness and no air leakage. 3、Surface is polished, corrosion resistant and long service life. 4、Exquisite workmanship, excellent performance, suitable for soda water machine. 5、Simple installation method, used to connect gas cylinder, and the inflation is stable and convenient. Specifications Item Type: CO2 Refill Adapter Material: Brass Surface Treatment: Polished Weight: Approx. 383g / 13.5oz Total Length: Approx. 7.8cm / 3.1in Thread: W21.8-14 // TR21-4 Applicable Countries: South Korea, Japan, Britain, Germany, France, Poland, Norway, Switzerland, Russia, Ukraine, South Africa, Sweden, Chile, Czech Republic, Singapore.. (some countries are also called DIN477 /JIS m22-14) Purpose: It is the valve of gas cylinder of soda water machine/bubble water machine, used to connect the gas cylinder/inflate Package List 1 x Adapter 6 x Gasket 9 x Protective Ring 1 x Right Angle Wrench 1 x Brass Joint 1 x Manual