

CGA320 CO2 Tank Adapter
Stop buying cartridges — connect your Keg Smiths regulator to a refillable CO2 tank instead. The CGA-320 CO2 Tank Adapter screws into our standard cartridge regulators and converts them to accept the standard US CO2 tank thread (CGA-320), so you can run your mini keg off a 5 lb, 10 lb, or 20 lb tank for far cheaper per pour.
Why move to a refillable tank
- Cents per pour vs cartridges: Refillable CO2 tanks cost a fraction per pour over time — economical if you keg multiple times a year.
- Never run out: A 5 lb tank dispenses dozens of full kegs.
- Standard US thread: CGA-320 is the universal US CO2 tank fitting — every welding shop, paintball shop, and homebrew shop refills these.
Specifications
| Type | CGA-320 CO2 tank adapter (5/8") |
|---|---|
| Connects | Keg Smiths cartridge regulator → standard US CO2 tank |
| Material | Brass |
How to Install
- Remove any cartridge from the regulator.
- Thread the CGA-320 adapter into the regulator's cartridge fitting.
- Hand-thread the regulator (with adapter) onto a CGA-320 CO2 tank.
- Open the tank valve slowly and adjust output pressure as needed.
Frequently Asked Questions
Will any US CO2 tank work?
Yes — any standard US CO2 tank (paintball, homebrew, welding) uses the CGA-320 fitting.
Where do I refill the tank?
Most homebrew shops, welding supply stores, and many paintball shops do CO2 refills.
Pairs Well With
Pair with our 5/8" 3K PSI Regulator for a complete tank-side setup, or the 60 PSI Big Boy Regulator if you want force-carbing capability.

CGA320 CO2 Tank Adapter
Sale price$10.00
