Brass Household CO2 Cylinder Adapter Sodawater Bottle Connector Transform Valve TR21-4 to W21.8-14/ CGA320 Optional

Features:
Made with fine quality brass for maximum durability.
Precise design, anti-corrosion and wear resistance, can provides long service time.
Easy to screw empty CO2 cylinder (not included) into the adapter.
Easy to install and use, and store.
CO2 adapter for filling sodastreams soda-club water sprinkler fro transform thread from TR21-4 to W21.8-14/Tr21-4 to CGA320.
For easy filling of sodastream-cans with CO2.
Easy to use, a perfect replacement for the old and broken one.
Usage:
Screw the adapter to a commercial CO2 gases cylinder.
The empty CO2 cylinder is screwed into the adapter.
Open the valve of the large gas-bottle.
After about 15-20 sec., the cylinder is completely filled.
Close valve of the large gas-bottle.
Opening the bleed screw to drain residue remaining gases.