Item Type: CO2 On/Off Adapter Material: Aluminum Alloy Color: Black Size: Approx. 2.4x6.1cm / 0.9x2.4in Weight: Approx.70g/2.5oz Application: This adapter is used to filling CO2 to Soda tank easily 1Easy to use, this adapter is used to filling CO2 to Soda tank easily, help you make delicious sodas. 2Knurled pattern handle with easy screw on/off, ergonomic design, non?slip, simple operation. 3This adapter includes 2 output ports, one fits 1/8 NPT?27 threaded, the other fits 21 x 4in Soda tank thread. 4Made of high quality aluminium alloy material, it is durable, wear resistant and anti?aging. 5Good sealing, tight thread, no gas leakage when connected to the cylinder. 1 x CO2 On/Off Adapter 1 x Gasket 1. Please allow 1?2in error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.