2.5 lb. Aluminum CO2 Cylinder – Recertified

This Recertified 2.5 lb Aluminum CO2 Cylinder is a lightweight and easily portable CO2 tank that’s great for conserving space and saving money. Perfect for beverage delivery, aquariums, and other small CO2 cylinder needs. Quality you can depend on with fresh hydro-testing within 18 months of shipment, DOT approved, freshly painted, and fitted with a new CGA320 valve.

Premium Construction

  • Durable painted finish.
  • High-strength, corrosion-resistant aluminum.
  • Engineered design for high strength and great low temp performance.

Quality Features

  • Approximately 4.4″ diameter x 14″ height (with valve) Note: due to differences between manufacturers, cylinder height may vary by +/- several inches.
  • DOT-approved
  • Hydro-tested within 18 months
  • New CGA320 valve installed
  • 1800 PSI Service  Pressure / 3000 PSI Test Pressure
  • 5-year retest interval
  • Applications: industrial, hydroponic, beverage dispensing, scientific and welding
  • Ships empty

Please Note: All CO2 cylinders are sourced from several manufacturers. As a result, cylinders may vary in dimensions. We apologize, but we are unable to take special requests at this time.

Find this CO2 cylinder and other top-quality CO2 tanks on the CO2 cylinder page.

Questions? Please see our frequently asked questions page.

Still have questions? Email us at [email protected].

Product note: compressed gas cylinders can be dangerous if used improperly. Please be careful, know the correct procedures for use, and exercise caution when connecting and using any compressed gas device.

Weight 6 lbs
Dimensions 5 × 5 × 15 in
Gas Type





Painted Gray





Service Pressure

1800 PSI / 124 bar

Test Pressure

3000 PSI / 207 bar






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Fast Shipping

Gas Cylinder Source knows you need your product now, which is why we offer super-fast shipping and even have an express option. We also recognize shipping charges can play a significant role in a purchase, and that is why we do everything we can to keep shipping rates as low as possible. We do not inflate the price of our products as a mask for free shipping offers. Our product prices are set at the best pricing we can offer, and the amount charged for shipping covers the shipping and delivery of your order. We believe this transparency in costs is the best way to keep you well-informed while receiving the best price available.

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Residential vs Commercial Address
Initial shipping charges calculated in the Shopping Cart are figured using a residential shipping rate unless you have previously entered a commercial address in the ship-to field during a previous checkout session. Deliveries to a commercial address are typically cheaper than deliveries to a residential address and will be reflected on the checkout page once the full address has been entered and the system confirms it is a commercial address.

LTL Freight Shipments
For larger freight or custom orders, we ask you to allow for a 7-10 business day lead time for product preparation and shipping set up. A customer service representative may reach out to you requesting additional information such as liftgate needs, receiving hours, or other order details. Once your order has shipped, you will receive tracking information. LTL Freight Costs will be calculated on the day of shipment and may vary from your initial estimate, resulting in additional charges.

Time to Ship
Product is shipped from Minnesota. Transport time is usually between 1 and 5 days. Orders typically ship out the following business day after the order has been placed. Larger orders, and especially those going via a contracted freight service, may take additional time.

Order Tracking
Once your order has been shipped, an email will be sent to you with tracking details as well as a link you can use to track your shipment and find estimated delivery information.