AquaNature Steel Dual Guage Co2 Regulator with Solvonoid Valve + Bubble Counter for Aquarium
- Stable pressure design, constant output pressure
- Precise adjusting valve, easily to set 1 bubble for every 2-3 seconds.
- Bubble counter with check valve,using reinforced PC material, make it more safety and durable
- Low temperature solenoid valve.
Blue, Red, Silver, Yellow