CO2Art Pro-SE Series Dual Stage CO2 Regulator
The Pro-SE is built on a dual stage body, so output pressure holds steady as the cylinder drains and the risk of an end of tank dump drops sharply. It arrives with a 12V DC solenoid, a universal 100V to 240V adapter, two gauges for cylinder and working pressure, an integrated needle valve and a bubble counter with a check valve inside. Threads are CGA320, the standard on refillable US cylinders.
A sensible pick for planted tanks around 20 gallons and up, especially setups where CO2 has to switch on ahead of the lights through a timer. Paintball cylinder owners need a separate adapter. First setup rewards patience: purge the line, bring working pressure to a moderate level, then creep up on the bubble rate rather than opening the needle valve wide.
Pros
- Dual stage body keeps output pressure stable
- 12V DC solenoid, quiet and cool to touch
- Bubble counter with built in check valve
- Universal 100V to 240V power adapter
- Standard CGA320 thread, fits refillable tanks
Cons
- Pricier than single stage regulators
- Paintball adapter sold separately
- Needle valve needs a slow, careful first setup
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