Dual CO2 regulator & solenoid engineered specifically for the aquarium hobby at an affordable price. This is an excellent Regulator and Solenoid for any hobbyist who is automating a calcium reactor or setting up a freshwater planted aquarium. Very quiet, reliable, non-stick operation. Precise needle valves to dispense exactly the flow desired. The PINPOINT CO2 Regulator Solenoid is the Cadillac of regulators
