Aquarium Fish Tank 2 Gauge CO2 Pressure Regulator Bubble Counter Solenoid Valve
Fire Extinguisher NOT INCLUDED. Gauge CO2 Regulator with Solenoid Valve and Bubble Counter, Aquarium Pressure Reducer, W21.8 Interface. Mufan CO2 Regulator + Solenoid Valve W21.8 UK Aquarium - Fits Fire Extinguishers.