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Home All Products CO2 Carbon Dioxide Cylinders
New 10 lb Steel CO2 Cylinder with CGA320 Valve โ€“ 40 cu ft

New 10 lb Steel CO2 Cylinder

$110.80

This new 10 lb steel CO2 cylinder with CGA320 valve is built for strength, safety, and long-lasting performance. DOT approved and rust-resistant, itโ€™s ideal for beverage carbonation, MIG welding, and industrial CO2 use. Durable, refillable, and ready for heavy-duty service across multiple industries.

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SKU: 40STEEL-320
Category: CO2 Carbon Dioxide Cylinders
Tag: Carbon Dioxide
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New 10 lb. Steel CO2 Cylinder with CGA320 Valve โ€“ 40 cu ft.

This new steel carbon dioxide (CO2) cylinder comes equipped with a CGA320 valve and is designed for maximum strength, durability, and safety. Built to handle high-pressure CO2 applications, this rugged cylinder is ideal for industrial, medical, beverage, and welding use. The rust-resistant gray painted finish ensures long-lasting performance even in demanding environments.

Key Features

  • High Strength & Durability:
    Manufactured from seamless steel for superior resistance to high pressures, impacts, and extreme conditions. The absence of welds minimizes weak points, reducing the risk of rupture or failure.
  • Versatile Applications:
    Perfect for CO2 beverage carbonation, MIG welding, fire suppression systems, medical use, and industrial gas supply.
  • Reliable Safety:
    Seamless construction and robust design ensure secure storage and dependable performance under pressure.
  • Cost-Effective & Reusable:
    Designed for repeated refills and long service life, offering a sustainable, budget-friendly option for high-volume CO2 users.

Specifications

  • Material: Steel
  • Valve Type: CGA320 (Standard for CO2 use)
  • Capacity: 10 lb. / 40 cu ft.
  • Finish: Gray, rust-resistant paint
  • Dimensions: Approx. 22.5″ height (with valve) x 7″ diameter
  • Weight: Approx. 30 lbs. empty
  • DOT-Approved: for regulated transport and refill
  • Ships Empty: Confirm valve type and size can be filled by your local gas supplier.

Applications

  • MIG welding and metal fabrication (enhances weld speed and penetration)
  • Fire suppression systems
  • Medical and laboratory gas applications
  • Beverage carbonation (kegerators, breweries, soda systems)


Why Choose a Steel CO2 Cylinder?

Steel CO2 tanks offer exceptional impact resistance and longevity compared to aluminum cylinders. Their seamless design and high-pressure capacity make them the preferred choice for professional-grade welding, brewing, and industrial gas operations.

Find this CO2 cylinder and other top-quality CO2 tanks on theย 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,ย and exercise caution when connecting and using any compressed gas device.

Weight 31 lbs
Dimensions 23 × 8 × 8 in
Gas Type

CO2

Material

Steel

Finish

Painted Gray

Valve

CGA320

Approval

DOT

Service Pressure

1800 PSI / 124 bar

Test Pressure

3000 PSI / 207 bar

Length

22.5" / 571.5 mm

Diameter

7" / 178 mm

Thread Size

3/4" NGT

Application

Beverage, Fire Safety, Medical, Welding

Ships

Empty

Condition

New

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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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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.

FREQUENTLY ASKED QUESTIONS

โ–ผ What is the New 10 lb Steel COโ‚‚ Cylinder best used for?

The New 10 lb Steel COโ‚‚ Cylinder is designed for beverage dispensing, kegerator systems, soda fountains, aquariums, hydroponics, and other applications requiring compressed carbon dioxide.

This cylinder provides a practical mid-size capacity that balances portability with usable gas volume. A 10 lb COโ‚‚ capacity is commonly selected for small to mid-sized beverage systems where frequent refills are not desirable, but a large stationary tank is unnecessary.

It is well-suited for bars, restaurants, mobile beverage operators, grow facilities, and hobbyist setups that need a reliable, refillable COโ‚‚ source with standard CGA320 compatibility.

โ–ผ Who should choose a 10 lb COโ‚‚ cylinder instead of a 5 lb or 20 lb size?

A 10 lb COโ‚‚ cylinder is a good fit for users who need more runtime than a 5 lb tank but prefer a more compact and manageable option than a 20 lb cylinder.

Compared to a 5 lb cylinder, a 10 lb size typically reduces refill frequency, which can lower operational interruptions in commercial beverage or grow applications. Compared to a 20 lb cylinder, it offers easier handling and transport, particularly in mobile or space-constrained environments.

For many small businesses and serious home users, 10 lb represents a practical middle ground.

โ–ผ Does this 10 lb COโ‚‚ cylinder ship full?

No. All cylinders ship empty for safety and regulatory compliance.

Compressed gas cylinders cannot be shipped filled through standard commercial carriers. This cylinder must be filled locally by a qualified gas supplier that supports COโ‚‚ service.

Customers are responsible for ensuring the cylinder is filled in accordance with local codes and handled in compliance with DOT and CGA safety standards.

โ–ผ What are the specifications of the New 10 lb Steel COโ‚‚ Cylinder?

This cylinder is a steel, DOT-approved compressed gas cylinder designed specifically for COโ‚‚ service and equipped with a CGA320 valve outlet.

Key specifications typically include:

  • Capacity: 10 lb COโ‚‚
  • Material: High-strength steel
  • Valve: CGA320 (standard for COโ‚‚ service)
  • Certification: DOT-compliant
  • Designed for standard COโ‚‚ service pressure

Dimensions and tare weight may vary slightly by approved manufacturer but remain within industry tolerances.

โ–ผ Is this cylinder DOT-certified?

Yes. The New 10 lb Steel COโ‚‚ Cylinder meets current DOT requirements for compressed gas cylinders.

Each cylinder is manufactured or hydrostatically tested in accordance with applicable DOT standards. Test dates are recent to maximize usable service life.

Customers should always verify retest intervals stamped on the cylinder shoulder and comply with required hydrostatic testing cycles.

โ–ผ What type of valve does this cylinder use?

This cylinder uses a CGA320 valve, the standard outlet for carbon dioxide service in the United States.

CGA320 connections are compatible with most COโ‚‚ regulators used for beverage dispensing, hydroponics, aquariums, and industrial COโ‚‚ applications.

It is the customerโ€™s responsibility to confirm regulator compatibility before installation.

โ–ผ How long will a 10 lb COโ‚‚ cylinder last?

A 10 lb COโ‚‚ cylinder can carbonate and dispense approximately 8โ€“10 full-size half-barrel kegs, depending on serving pressure and system efficiency.

Actual runtime depends on regulator settings, leak integrity, serving pressure, and environmental factors. In hydroponic applications, runtime varies based on grow room size and injection frequency.

Proper regulator setup and leak-free fittings are critical to maximizing gas efficiency.

โ–ผ Is a steel COโ‚‚ cylinder durable for commercial use?

Yes. Steel COโ‚‚ cylinders are durable and well-suited for stationary commercial environments.

Steel construction offers strength and impact resistance, making it appropriate for bars, restaurants, grow rooms, and back-of-house beverage installations.

For high-mobility environments where frequent lifting is required, some users may prefer aluminum for weight reduction.

โ–ผ Is a 10 lb steel COโ‚‚ cylinder portable?

A 10 lb steel COโ‚‚ cylinder is portable but heavier than an aluminum equivalent.

It is manageable for occasional transport between refill stations and installation points. However, steel cylinders weigh more than aluminum models of the same capacity.

For mobile beverage services or frequent relocation, aluminum may provide ergonomic advantages.

โ–ผ Can this cylinder be used for hydroponic COโ‚‚ systems?

Yes. This 10 lb COโ‚‚ cylinder is commonly used in hydroponic grow environments for supplemental COโ‚‚ injection.

The CGA320 valve allows connection to standard COโ‚‚ regulators used in grow room control systems. The 10 lb size provides meaningful runtime without occupying excessive floor space.

Users should secure cylinders upright and follow all grow room safety protocols regarding ventilation and monitoring.

โ–ผ Can this cylinder be used for aquariums?

Yes. This cylinder can support COโ‚‚ injection systems for planted aquariums when paired with an appropriate regulator and needle valve.

The 10 lb size offers extended runtime compared to smaller hobby cylinders, reducing refill frequency.

As with all pressurized systems, secure installation and regulator compatibility are essential.

โ–ผ Will this 10 lb COโ‚‚ cylinder work with my existing regulator?

If your regulator uses a CGA320 inlet connection, it will be compatible.

CGA320 is the industry-standard valve outlet for COโ‚‚ service. Always confirm the thread type and regulator condition before installation.

Do not attempt to modify valve threads or use adapters that are not rated for COโ‚‚ pressure.

โ–ผ Does this cylinder include a siphon tube?

This standard configuration does not include a siphon tube unless explicitly specified.

Siphon tubes (also called dip tubes or expulsion tubes) are typically used when liquid COโ‚‚ withdrawal is required for refilling operations. Beverage and grow applications usually require vapor withdrawal, not liquid.

Customers needing liquid withdrawal service should confirm the configuration before ordering.

โ–ผ Can I exchange this cylinder at a local gas supplier?

Many gas suppliers will fill or exchange customer-owned COโ‚‚ cylinders, but policies vary by location.

Because this cylinder is DOT-certified and uses a standard CGA320 valve, most refill facilities can service it. However, some suppliers operate exchange-only programs limited to their own branded cylinders.

It is advisable to confirm refill policies with your local supplier before purchase.

โ–ผ Why purchase a 10 lb COโ‚‚ cylinder instead of renting?

Purchasing eliminates ongoing rental fees and gives you full control of your cylinder asset.

Many traditional suppliers charge monthly rental fees that accumulate over time. Owning your cylinder allows you to refill locally without recurring rental costs.

For businesses operating multiple systems, ownership can provide meaningful long-term cost savings.

โ–ผ What maintenance does a 10 lb COโ‚‚ cylinder require?

Maintenance primarily involves periodic hydrostatic testing and visual inspection as required by DOT regulations.

COโ‚‚ cylinders typically require recertification every 5 years, but always confirm the stamped date and specification on the cylinder.

The valve should not be removed except by qualified professionals. Cylinders should be stored upright and secured to prevent tipping.

โ–ผ Is steel or aluminum better for a 10 lb COโ‚‚ cylinder?

Steel offers lower initial cost and strong durability, while aluminum provides lighter weight and corrosion resistance.

Steel cylinders are commonly chosen for stationary beverage systems where weight is less critical. Aluminum is often preferred in marine, humid, or mobile environments.

The correct choice depends on your handling needs and operating conditions.

โ–ผ How does this compare to a 10 lb aluminum COโ‚‚ cylinder?

Both provide the same COโ‚‚ capacity and CGA320 compatibility, but differ in weight and corrosion resistance.

Steel models typically cost less upfront and perform well in controlled indoor environments. Aluminum models are lighter and resist rust, which may be beneficial in humid or coastal areas.

Performance in terms of gas delivery is equivalent when properly regulated.

โ–ผ How does this compare to rental cylinders from major suppliers?

Functionally, it provides the same COโ‚‚ storage capability as rental cylinders, but without ongoing lease fees.

Traditional suppliers such as Airgas and Linde Gas & Equipment often operate on rental or lease models. Gas Cylinder Source offers an ownership model, enabling customers to manage refill logistics and avoid recurring charges.

Customers must arrange local filling, as cylinders ship empty.

โ–ผ Is a 10 lb COโ‚‚ cylinder large enough for a small bar setup?

Yes. A 10 lb cylinder is commonly used for small draft systems serving limited tap lines.

It reduces refill frequency compared to 5 lb tanks while remaining compact enough for under-counter kegerators or tight back-of-house installations.

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