5 LB. Carbon Dioxide Portable Fire Extinguisher

SF-5CO2 Carbon Dioxide Portable Fire Extinguisher — 5 lb Class B:C Protection for Electrical and Flammable Liquid Hazards

The Strike First SF-5CO2 is a 5 lb carbon dioxide portable fire extinguisher engineered for professional use in environments where flammable liquids, gases, and energized electrical equipment present fire risk. Rated 5-B:C by UL and ULC and approved by the U.S. Coast Guard as Type B:C Size I, it meets or exceeds ANSI/UL 154, ANSI/UL 711, CAN/ULC-S503, and CAN/ULC-S508 standards. Its industrial-grade construction — featuring an aluminum cylinder, stainless steel hardware, and chrome-plated solid brass valve — makes it well suited for corrosive and demanding job-site environments. Backed by a 5-year warranty, the SF-5CO2 is a reliable first-response tool for contractors, trades professionals, and marine applications.

Technical Specifications

Available Models — Carbon Dioxide Series

Unlike dry chemical extinguishers, the SF-5CO2 discharges clean CO2 gas that leaves no residue, making it the preferred choice where protecting sensitive electrical equipment or avoiding post-discharge cleanup is a priority. Its stainless steel hardware and polyester powder coat finish provide corrosion resistance that extends service life in harsh or marine environments, setting it apart from standard commercial-grade units.

Key Features & Benefits

Industrial-Strength Aluminum Cylinder with D.O.T. Approval

The D.O.T. approved aluminum cylinder provides a high strength-to-weight ratio, keeping the unit manageable at job sites while meeting federal transport and pressure vessel requirements. Aluminum construction also resists corrosion in environments where steel cylinders would degrade over time.

Superb Corrosion Resistance for Harsh Environments

A super durable polyester powder paint finish combined with stainless steel handles, pull pin, and retaining chain makes the SF-5CO2 well suited for corrosive environments such as marine, chemical processing, or coastal job sites. This level of hardware specification reduces maintenance intervals and extends the service life of the unit.

Chrome-Plated Solid Brass Valve

The chrome-plated solid brass valve delivers reliable actuation and long-term durability under repeated pressure cycling. Brass valves resist corrosion and maintain a consistent seal, which is critical for an extinguisher that must perform on demand after extended storage.

Impact-Resistant Horn

The strong impact-resistant horn withstands the physical demands of job-site storage and transport without cracking or deforming. A durable horn ensures the discharge stream is properly directed during an emergency, maximizing agent effectiveness at the rated 6–12 ft range.

Color and Bar Coded Labels for Accurate Service

Color and bar coded labels streamline inspection and service recordkeeping, reducing the risk of service errors during annual maintenance. For contractors managing multiple extinguishers across a fleet or facility, this simplifies compliance with NFPA 10 inspection requirements.

NFPA 10 Compliant with Broad Listing Coverage

The SF-5CO2 complies with NFPA 10 Standard for Portable Fire Extinguishers and carries UL, ULC, and U.S.C.G. listings, satisfying the approval requirements of most AHJs (Authorities Having Jurisdiction) in the U.S. and Canada. Dual UL/ULC listing simplifies procurement for contractors operating across both countries.

Common Applications

Electrical Equipment Rooms and Panel Areas

CO2 extinguishes Class C fires on energized electrical equipment without leaving conductive residue that could cause further damage or require costly cleanup of switchgear, panels, or control systems.

Flammable Liquid Storage and Dispensing Areas

Rated Class B, the SF-5CO2 is appropriate for areas where flammable liquids and gases are stored or handled, including fuel dispensing stations, solvent storage rooms, and generator areas on construction sites.

Marine and Coastal Environments

U.S.C.G. approval as Type B:C Size I makes the SF-5CO2 suitable for use aboard vessels, and its corrosion-resistant construction holds up in salt-air and high-humidity marine environments.

Workshops and Maintenance Facilities

Contractors and trades professionals operating workshops with welding equipment, compressors, or electrical tools benefit from a clean-agent extinguisher that protects equipment without the mess of dry chemical agents.

Corrosive Industrial Environments

The stainless steel hardware and powder coat finish make the SF-5CO2 well suited for chemical plants, processing facilities, or any environment where airborne corrosives would degrade standard extinguisher hardware.

Compatible Materials

• Flammable liquids and gases (Class B fires)
• Energized electrical equipment (Class C fires)
• Gasoline, diesel, and fuel oils
• Solvents and chemical liquids
• Electrical panels, switchgear, and control systems
• Motors, generators, and power tools

Product Documents

• Strike First CO2 Fire Extinguisher Product Sheet

Frequently Asked Questions

Q: What fire classes does the SF-5CO2 cover?
A: The SF-5CO2 is rated for Class B fires (flammable liquids and gases) and Class C fires (energized electrical equipment). It is not rated for Class A fires involving ordinary combustibles.

Q: Is the SF-5CO2 approved for marine use?
A: Yes. The SF-5CO2 carries U.S. Coast Guard approval as Type B:C Size I, making it suitable for use aboard vessels in addition to land-based applications.

Q: What standards does the SF-5CO2 meet?
A: The SF-5CO2 meets or exceeds ANSI/UL 154, ANSI/UL 711, CAN/ULC-S503, CAN/ULC-S508, and complies with NFPA 10 Standard for Portable Fire Extinguishers. The cylinder is D.O.T. approved.

Q: What is the effective discharge range?
A: The SF-5CO2 has an effective discharge range of 6–12 ft (1.8–3.7 m) with a discharge time of 11 seconds.

Q: What bracket options are available for the SF-5CO2?
A: The SF-5CO2 comes with a standard Wall/VB bracket. The optional HDVB-2 heavy-duty vehicle bracket is also available for mobile or vehicle-mounted installations.

Q: What is the operating temperature range?
A: The SF-5CO2 is rated for use in temperatures from -22°F to 120°F (-30°C to 49°C), making it suitable for both cold-weather job sites and warm indoor environments.