20 lb. Aluminum CO2 Tank

Aluminum CO2 Tank Built for Sealed Grow Rooms The 20 lb aluminum CO2 tank holds 20 pounds of liquid CO2 in a 6061-T6 aluminum alloy cylinder. It carries an 1,800 psi service-pressure rating under the DOT-3AL specification. At roughly half the weight of a comparable steel bottle, it stays rust-free in humid rooms. The CGA-320 outlet threads onto any standard CO2 regulator or solenoid-controlled injection setup. Sizing a CO2 Tank for Grow Rooms In a sealed 5x5, a full fill typically holds 1,000-1,500 ppm for about a month before a refill. Actual runtime depends on room volume and how often the door opens. This refillable aluminum CO2 cylinder ships empty by law, so plan on a first fill at a welding or beverage-gas supplier. Pair it with a CO2 regulator and a ppm controller to dose only during lights-on. It feeds the same line for both continuous-flow and solenoid-burst setups. Key Features 20 lb CO2 capacity: Holds enough liquid CO2 to keep a small sealed room at target ppm for roughly a month between fills. 6061-T6 aluminum build: Runs about half the weight of a steel bottle and won't rust in a humid grow space. CGA-320 valve: Threads onto any standard CO2 regulator or solenoid, so it drops into most existing injection setups. DOT-3AL, 1,800 psi rating: Certified for CO2 service and refillable at welding or beverage-gas suppliers. Protective collar: Molded collar guards the valve while moving the tank between fills. Technical Specifications Specification Value CO2 Capacity 20 lb Cylinder Material 6061-T6 aluminum alloy Valve Outlet CGA-320 DOT Specification DOT-3AL (3AL1800) Service Pressure 1,800 psi Diameter 8 in Fill State Ships empty (not filled) Included Protective collar