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UNSCO2 CO2 Cylinder Pro 5LB metal tank with valve for beverage and industrial use, shown in a clear side view image.

UNS CO2 Cylinder Pro - 10LB

$ 179.99 - $ 179.99
$ 179.99
$ 179.99 - $ 179.99
$ 179.99
 

The UNS CO₂ Cylinder Pro (10LB) is a heavy-duty, premium aluminum tank that supports thriving, high-tech planted aquariums. Built for serious aquascapes, it combines durability, portability, and precise control so your plants get steady carbon dosing for fuller, healthier growth.

Key Features & Benefits

  • A dedicated manual on/off twist valve gives you complete control over the tank opening, so you never have to worry about sudden leaks during installation.
  • Lightweight brushed aluminum construction provides a clean, rust-free look that easily handles the humid environment inside an aquarium cabinet.
  • The massive 10-pound capacity offers an incredible gas reserve, making it the perfect choice for extra-large displays or minimizing refill trips.
  • Official DOT3AL certification guarantees the cylinder meets strict safety and pressure standards for worry-free operation in your home.

Product Specifications

  • Gas Volume Capacity: 10 lb / 6.7 L
  • Regulator Compatibility: Fits all standard CGA320 threaded regulators (Note: While it technically fits both the Mini and Pro UNS styles, this size cylinder is most commonly paired with the UNS Pro Dual Stage Regulator for larger aquariums).
  • Material: Aluminum
  • Safety Certification: DOT3AL Certified
  • Working Pressure: 124 BAR / 1800 PSI
  • Test Pressure: 207 BAR / 3000 PSI

Technical Specifications

Please note that gas depletion rates will always vary depending on your target bubble count, plant density, and tank size.

  • Cylinder Height (Without Valve): 430 mm / 16.93"
  • Cylinder Weight (Empty / Without Valve): 6 kg / 13.22 lb

**Important Note: All UNS CO₂ cylinders are sold and shipped empty due to shipping regulations. Before ordering, we highly recommend checking your local area for a certified welding supply shop, homebrew store, or paintball shop that can fill standard CGA320 aluminum CO₂ tanks for you!

Sizing Recommendations

  • The Mini Setup: UNS Paintball Cylinders + UNS Mini Dual Stage Regulator (Best for nano tanks, tight cabinet spaces, or desktop scapes).
  • The Pro Setup: UNS CO2 Cylinder Pros + UNS Pro Dual Stage Regulator (Best for larger displays, high-tech demands, and maximum long-term pressure stability).

What’s in the Box?

  • 1x UNS CO₂ Cylinder Pro (10LB)

Team Buce Plant Tips

Fine-tuning your CO₂ setup can seem intimidating at first, but the process is far simpler than it appears. For a safe and reliable introduction, refer to our guide on How to Add CO₂ to Your Planted Aquarium. And if you’re curious about the science behind why CO₂ makes your buce, stems, and carpets thrive, explore The Mysteries of CO₂ in a Planted Tank Explained for a clear breakdown.