The UNS CO₂ Paintball Cylinder (24 Oz.) offers the perfect middle ground for hobbyists managing a beautiful nano aquarium or compact desktop scape. Lightweight, corrosion-resistant, and easy to conceal in small under-tank cabinets, this refillable tank delivers a long-lasting carbon supply without sacrificing valuable space around your display.
*Important Notice: All UNS CO₂ cylinders are sold and shipped EMPTY due to federal transport regulations. Before ordering, please verify that a local welding supply store, homebrew shop, fire extinguisher service, or paintball center near you fills or exchanges standard CGA320 aluminum CO2 tanks.
Note: Gas depletion rates vary based on target bubble count, photoperiod duration, plant mass, and aquarium volume. Looking for an even more compact tank option? Click here for the UNS CO2 Paintball Cylinder - 16 Oz.
| Attribute | Specification |
|---|---|
| Brand | Ultum Nature Systems (UNS) |
| Model | UNS CO2 Paintball Cylinder (24 Oz.) |
| Gas Volume Capacity | 24 oz. (0.68 kg / 1.0 L) |
| Material | Premium AA6061 Aluminum |
| Valve Stem Thread | Standard Paintball Pin Valve Thread |
| Working Pressure | 124 BAR / 1,800 PSI |
| Test Pressure | 207 BAR / 3,000 PSI |
| Cylinder Height | 10.8 inches (275 mm) |
| Empty Weight | 1.8 lbs (0.82 kg) |
1. Does the UNS 24 Oz. Paintball Cylinder arrive pre-filled with gas?
No. Federal shipping regulations prohibit the transport of pressurized gas cylinders. All cylinders are shipped empty and must be filled or swapped locally at a paintball shop, welding supply store, or homebrew supplier before use.
2. How long will a 24 Oz. paintball tank last on a nano aquarium?
On a standard nano or desktop tank (under 15 gallons) running 1 bubble per second for 8 hours daily, a 24 Oz. paintball cylinder typically lasts between 3 to 5 months before needing a refill.
3. Will this cylinder work with standard CGA320 regulators?
No, not directly. This cylinder features standard paintball threading. It is designed to pair directly with the UNS Mini Dual Stage Regulator (Pairing alternative CO2 regulators voids any warranty claims) or other paintball-compatible regulators (a CGA320 adapter is required to connect to full-size regulators).
Setting up pressurized carbon dioxide is far simpler than it appears! Explore our step-by-step guides to master your setup:
Overall rating: 4.68 / 5 from 25 reviews.
Review topics: ["size","quality","cylinder","tank"].
"Fast shipping, great price and the cylinder arrived in beautiful condition"
"It’s exactly what i was looking for perfect size get 2 of them that way when one is done you have a spare the design is perfect for having at minimum of 2 at any size and you can’t beat the price"
"Solid build and easy to use with the shutoff valve. Thanks!"
"The product is very in great quality and nice design! The size is perfect for me, not too big or small. Easy to set up, and you can tell that the product quality is top notch!!"
"The bootle seems to be very high quality. My CO2 attachments fit beautifully without interference from the valves. Very pleased so far."
"UNS makes great products. I have been using this canister for over two min and it is still going without having to get a refill. It is just what I needed."
"Very compact and upscale look. Great for a nano tank!"
"Works great. Took it to a local paintball shop to get it filled and my first high tech aquarium is up and running!"
"Very tall"
"Was difficult finding a place to fill the canisters close to me. Turns out DUNHAMS sporting goods fills!! Love the set up."
