Soda Water Carbon Dioxide Cylinder Refill Adapter Connector Gas Regulator Tank Aquarium Homebrew Tr21-4 to W21.8

CO2 Refill Adapter is used to fill CO2 into your Soda tank.
Adjustable valve pin ensures compatibility with soda cylinder valve variation.
Easy to install and use.
Made of high quality metal, light weight design, high hardness and durable.

Specification:

Inner Thread: TR21-4
Outer Thread: W21.8-14

Package Includes:
CO2 Refill Adapter *1 with free sealing gaskets and orings.

Note:

1.It can not work on AU and NZ soda water bottle.
2. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.
3.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.