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Home All Products CO2 Carbon Dioxide Cylinders
New 75 lb. Steel CO2 Cylinder with CGA320 Valve โ€“ 300 cu ft.
New 75 lb. Steel CO2 Cylinder with CGA320 Valve โ€“ 300 cu ft. No Cap
  • New 75 lb. Steel CO2 Cylinder with CGA320 Valve โ€“ 300 cu ft.
  • New 75 lb. Steel CO2 Cylinder with CGA320 Valve โ€“ 300 cu ft. No Cap

New 75 lb Steel CO2 Cylinder

$276.80

This 75 lb. steel CO2 cylinder with CGA320 valve delivers powerful, reliable CO2 performance for industrial, beverage, welding, and medical use. DOT-approved, rust-resistant, and refillable for long-lasting, cost-effective service.

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SKU: 300STEEL-320
Category: CO2 Carbon Dioxide Cylinders
Tag: Carbon Dioxide
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New 75 lb. Steel CO2 Cylinder with CGA320 Valve โ€“ 300 cu ft.

Heavy-duty performance. Built to last.
This new 75 lb. steel CO2 cylinder with a CGA320 valve is engineered for high-pressure performance and long-term reliability. Ideal for industrial, beverage, welding, and medical applications, this large-capacity CO2 tank provides steady, dependable gas flow when you need it most.

Constructed from seamless steel, it delivers superior strength and resistance to corrosion. The rust-resistant gray finish ensures lasting protection, even in demanding work environments. Perfect for professional use and refillable for ongoing value.

Key Features

  • Heavy-Duty Steel Construction: Seamless design for maximum strength and pressure resistance with no weld weak points.
  • Versatile Applications: Perfect for CO2 beverage carbonation, MIG welding, fire suppression systems, medical, and industrial gas use.
  • Safe & Certified: DOT-approved for safe transport and refill under regulated conditions.
  • Long-Lasting & Sustainable: Refillable and reusable for a cost-effective, eco-friendly CO2 solution.

Specifications

  • Material: Seamless Steel
  • Valve Type: CGA320 (Standard CO2 connection)
  • Capacity: 75 lb / 300 cu ft
  • Finish: Gray, rust-resistant paint
  • Dimensions: Approx. 60.75โ€ H (with valve) x 9.5โ€ diameter
  • Weight: Approx. 126 lbs (empty)
  • DOT Approved for regulated transport and refilling
  • Ships Empty: Check with your local gas supplier to confirm fill compatibility

Applications

  • MIG welding & fabrication: Enhances weld quality, speed, and consistency
  • Fire suppression systems
  • Medical and laboratory CO2 use
  • Beverage carbonation: Ideal for kegerators, breweries, and 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 130 lbs
Dimensions 62 × 10 × 10 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

56.5" / 1435 mm

Diameter

9.25"

Thread Size

3/4" NGT

Application

Beverage, Fire Safety, Medical, Welding

Ships

Empty

Condition

New

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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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  • Add your desired product(s) to the shopping cart.
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  • Click the "Calculate Shipping" link in the cart totals section and enter your Country, State, City, & Zip Code, then select the 'Update' button.

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.

FREQUENTLY ASKED QUESTIONS

โ–ผ What is the New 75 lb Steel COโ‚‚ Cylinder used for?

The New 75 lb Steel COโ‚‚ Cylinder is a high-capacity carbon dioxide cylinder designed for beverage dispensing, hydroponics, industrial applications, and other COโ‚‚ systems requiring extended runtime between fills.

With a 75 lb COโ‚‚ capacity, this cylinder supports high-demand operations where smaller 20 lb or 50 lb tanks require frequent refills. The CGA320 valve outlet is standard for COโ‚‚ service, ensuring compatibility with most beverage regulators and COโ‚‚ delivery systems.

This size is commonly selected by breweries, bars, restaurants, indoor growing facilities, and industrial users who want to reduce refill frequency and maintain a stable COโ‚‚ supply.

โ–ผ Who should choose a 75 lb COโ‚‚ cylinder instead of a smaller size

A 75 lb COโ‚‚ cylinder is best suited for businesses with steady, high-volume COโ‚‚ demand.

Compared to 20 lb or 50 lb cylinders, a 75 lb size reduces downtime associated with refilling and cylinder exchanges. It is ideal for multi-tap draft systems, commercial beverage carbonation, hydroponic grow rooms, and industrial COโ‚‚ use.

For lower-volume or mobile setups, a smaller aluminum cylinder may be easier to transport. For stationary, high-demand systems, this steel 75 lb option provides longer service intervals and lower cost per pound of stored COโ‚‚.

โ–ผ How long will a 75 lb COโ‚‚ cylinder last?

A 75 lb COโ‚‚ cylinder can last significantly longer than smaller cylinders, depending on usage rate and system demand.

In beverage applications, runtime depends on the number of taps, dispensing pressure, and carbonation volume. In hydroponics, duration depends on the grow room size and injection frequency. Because this cylinder holds 75 pounds of liquid COโ‚‚, it offers extended operating time compared to 20-lb or 50-lb cylinders.

Actual duration varies by application, but the primary advantage is reduced refill frequency and improved operational continuity.

โ–ผ What is the service pressure of this 75 lb COโ‚‚ cylinder?

This cylinder is built to standard COโ‚‚ service pressure specifications and manufactured in compliance with applicable DOT regulations.

COโ‚‚ cylinders are typically rated around 1800 PSI at 70ยฐF, though internal pressure varies with temperature. The cylinder is constructed from high-strength steel and stamped with the appropriate DOT specification and hydrostatic test markings.

As with all compressed gas cylinders, temperature exposure should not exceed 125ยฐF (51.7ยฐC), and cylinders must be handled and stored upright and secured.

โ–ผ Is steel a good material choice for a 75 lb COโ‚‚ cylinder?

Yes. Steel is a durable and economical choice for high-capacity, stationary COโ‚‚ applications.

Steel cylinders provide rugged construction and are well-suited for restaurant back rooms, brewery installations, grow facilities, and industrial settings. While heavier than aluminum, steel offers a lower upfront cost and a long service life when properly maintained.

For portable applications where weight is critical, aluminum may be preferred. For stationary systems prioritizing durability and value, steel is a practical solution.

โ–ผ Does this cylinder include a CGA320 valve?

Yes. The New 75 lb Steel COโ‚‚ Cylinder features a CGA320 valve outlet, the industry standard for COโ‚‚ service.

CGA320 valves are compatible with most COโ‚‚ beverage regulators, hydroponic regulators, and industrial COโ‚‚ control systems. Always confirm regulator compatibility before installation.

It is the customerโ€™s responsibility to verify that the valve configuration matches the intended gas and regulator type.

โ–ผ Can this 75 lb COโ‚‚ cylinder be used for beverage systems?

Yes. This cylinder is commonly used in commercial beverage dispensing systems.

The CGA320 valve is standard for draft beer systems, soda fountains, and other carbonation applications. Its larger capacity reduces interruptions during refills in high-volume environments such as bars, restaurants, and breweries.

Cylinders ship empty and must be filled by a qualified gas supplier with beverage-grade COโ‚‚.

โ–ผ Is this cylinder suitable for hydroponics or grow operations?

Yes. A 75 lb COโ‚‚ cylinder is frequently used in indoor agriculture and hydroponic grow rooms.

The larger capacity supports consistent COโ‚‚ supplementation without frequent refills. Steel construction is suitable for controlled indoor environments where the cylinder remains stationary.

Growers should ensure proper regulator setup and follow all safety guidelines for COโ‚‚ enrichment.

โ–ผ Can this cylinder be used for welding applications?

COโ‚‚ is commonly used as a shielding gas in MIG welding, either pure or blended.

This cylinder may be suitable for welding operations if configured correctly and filled with appropriate welding-grade COโ‚‚. Users should confirm regulator compatibility and ensure the cylinder is filled in accordance with the intended welding gas specification.

Always verify gas type and blend requirements before filling.

โ–ผ How heavy is a 75 lb steel COโ‚‚ cylinder?

When full, a 75 lb COโ‚‚ cylinder weighs significantly more than its empty tare weight due to the added COโ‚‚.

Because of its size and weight, this cylinder is generally intended for stationary use. Proper lifting practices and securing methods should always be followed during transport and installation.

Cylinders must be secured upright to prevent tipping and valve damage.

โ–ผ Does the cylinder ship full or empty?

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

Customers must have the cylinder filled by a qualified gas supplier capable of filling COโ‚‚ cylinders to the appropriate service pressure. Shipping filled cylinders via common carriers is not permitted.

โ–ผ What certifications does this 75 lb COโ‚‚ cylinder carry?

This cylinder meets current DOT specifications and includes appropriate hydrostatic test markings.

Gas Cylinder Source supplies cylinders with recent manufacture or recertification dates to maximize service life. Cylinders are compliant with U.S. transportation regulations for compressed gases.

Users should follow the required recertification intervals, typically every 5 years for COโ‚‚ cylinders, as stamped on the cylinder shoulder.

โ–ผ Why choose ownership instead of renting a COโ‚‚ cylinder?

Owning a COโ‚‚ cylinder eliminates recurring rental or lease fees charged by traditional gas suppliers.

For businesses with ongoing COโ‚‚ use, ownership can reduce long-term operating costs and provide greater control over equipment. This is especially valuable for restaurants, breweries, growers, and industrial users managing multiple cylinders.

Customers are responsible for maintenance, testing, and compliance once the cylinder is in service.

โ–ผ How does this compare to a 50 lb COโ‚‚ cylinder?

A 75 lb cylinder provides longer runtime and fewer refills than a 50 lb cylinder.

While both sizes are common in commercial environments, the 75 lb option is better suited for higher-demand systems. The tradeoff is increased size and weight, making it less portable.

Selection depends on space availability, usage rate, and refill logistics.

โ–ผ Is a siphon tube included with this cylinder?

This standard configuration does not include a siphon tube unless specifically selected.

Siphon tube (dip tube) cylinders are used for liquid COโ‚‚ withdrawal applications such as refilling smaller cylinders. Most beverage and grow operations require standard vapor withdrawal (non-siphon) cylinders.

Customers must confirm the correct configuration before ordering.

โ–ผ What safety precautions apply to this 75 lb COโ‚‚ cylinder?

This cylinder must be handled, stored, and filled in accordance with DOT regulations and applicable local codes.

Key safety practices include:

  • Secure upright storage
  • Protection from excessive heat (above 125ยฐF)
  • Use of proper CGA320-compatible regulators
  • Filling only with COโ‚‚ by qualified suppliers

Never modify the valve or fill the cylinder with a gas for which it is not rated.

โ–ผ How often does this cylinder require hydrostatic testing?

COโ‚‚ cylinders typically require hydrostatic retesting every 5 years, as indicated by the stamped date on the cylinder.

Testing must be performed by a certified facility. Using a cylinder overdue for testing is unsafe and noncompliant with DOT regulations.

โ–ผ Is the 75 lb COโ‚‚ cylinder suitable for multi-tap draft systems?

Yes. A 75 lb COโ‚‚ cylinder supports high-volume draft systems with reduced refill frequency.

This size is commonly used in bars, restaurants, and breweries operating multiple taps. The CGA320 valve ensures compatibility with standard beverage regulators. Its larger capacity helps maintain consistent pressure across busy service periods.

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