UNS · Cylinder
CO2 Paintball Cylinder
Small to medium tanks where a full-size cylinder will not fit in the cabinet.

UNS · Cylinder
Refillable aluminium CO2 cylinders with standard CGA-320 valves, from a cabinet-friendly 2.5 lb up to 20 lb. Bigger cylinders mean fewer trips to the refill station.
Updated
Anyone running a Pro or Mini regulator who wants the lowest running cost per fill.
Ships empty, and must be hydrostatically tested every five years before it can be refilled in the US.
| Model | Weight | Cylinder volume | Working pressure | Height |
|---|---|---|---|---|
| 2.5 lbUNSC2P25 | 1.8 kg | 1.68 L | 139 bar | 280 mm without valve |
| 5 lbUNSC2P5 | 3 kg | 3.35 L | 124 bar | 369 mm without valve |
| 10 lbUNSC2P10 | 6 kg | 6.7 L | 124 bar | 430 mm without valve |
| 20 lbUNSC2P20 | 10.8 kg | 13.4 L | 124 bar | 600 mm without valve |
Figures from Glass Aqua's product listing. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
UNS · Cylinder
Small to medium tanks where a full-size cylinder will not fit in the cabinet.
ADA · Diffuser
Pressurised CO2 tanks where you want a neat, nearly invisible diffuser and are happy to clean glass now and then.
ADA · Diffuser
Small to medium pressurised CO2 tanks where an upright glass diffuser suits the look.
ADA · Regulator
Keepers running pressurised CO2 who want finer adjustment than their regulator gives, or split lines to two tanks.
Quick answers about the UNS CO2 Cylinder Pro, drawn from its specs.
Anyone running a Pro or Mini regulator who wants the lowest running cost per fill.
Ships empty, and must be hydrostatically tested every five years before it can be refilled in the US.
Other co2 worth comparing: UNS CO2 Paintball Cylinder, ADA Pollen Glass Beetle, ADA Pollen Glass Type 3. Add any of them to the compare table to see the specs side by side.
4 options: 2.5 lb, 5 lb, 10 lb, 20 lb.