20 lb. Carbon Dioxide (CO2) Portable Fire Extinguisher

SF-20CO2 20 lb. Carbon Dioxide Fire Extinguisher — Industrial-Grade Class B:C Protection

The Strike First SF-20CO2 is a 20 lb. carbon dioxide portable fire extinguisher engineered for demanding commercial and industrial environments. Rated 10-B:C by UL and ULC, it is designed to suppress flammable liquid and gas fires (Class B) and electrical equipment fires (Class C) without leaving residue that could damage sensitive equipment. Built on a D.O.T.-approved industrial-strength aluminum cylinder with a chrome-plated solid brass valve and stainless steel hardware, this unit is well suited for corrosive environments where durability and reliability are non-negotiable. It complies with NFPA 10 Standard and meets or exceeds ANSI/UL 154, ANSI/UL 711, CAN/ULC-S503, and CAN/ULC-S508.

Technical Specifications

Available Sizes — Strike First CO2 Series

The SF-20CO2 distinguishes itself from dry chemical alternatives by discharging clean CO2 gas that leaves zero residue, making it the preferred choice where post-fire cleanup or equipment damage from agent contamination is a concern. Its industrial-grade aluminum cylinder, stainless steel hardware, and polyester powder coat finish provide corrosion resistance that extends service life in harsh job-site conditions. With a 5-year warranty and compliance with both U.S. and Canadian standards, it is a reliable, dual-market solution for contractors operating across North America.

Key Features & Benefits

Industrial-Strength Aluminum Cylinder

The D.O.T.-approved aluminum cylinder is built to withstand the rigors of industrial and construction environments. Its strength-to-weight ratio and corrosion resistance make it a durable long-term investment for facilities with demanding conditions.

Superior Corrosion-Resistant Finish

The super durable polyester powder paint finish provides superior corrosion resistance, making the SF-20CO2 well suited for corrosive environments such as chemical plants, marine facilities, and industrial workshops. This finish helps maintain the unit's integrity and appearance over its service life.

Chrome-Plated Solid Brass Valve

The chrome-plated solid brass valve delivers reliable actuation and long-term durability under pressure. Brass construction resists corrosion and ensures consistent performance when the extinguisher is needed most.

Stainless Steel Handles, Pull Pin & Retaining Chain

Stainless steel hardware throughout — including the handles, pull pin, and retaining chain — resists rust and corrosion in wet or chemically aggressive environments. This ensures the unit remains operable and tamper-evident over its full service life.

Impact-Resistant Horn

The strong impact-resistant horn is designed to withstand accidental drops and rough handling common on active job sites. A durable horn ensures the discharge nozzle remains functional and properly directed during an emergency.

Color and Bar-Coded Labels

Color and bar-coded labels support accurate service and inspection tracking, simplifying compliance with NFPA 10 maintenance requirements. This is particularly valuable for contractors and facility managers maintaining large inventories of fire protection equipment.

Wide Operating Temperature Range

Rated for use from -22°F to 120°F (-30°C to 49°C), the SF-20CO2 remains operational across a broad range of environmental conditions. This makes it suitable for both cold-climate outdoor storage and high-temperature indoor industrial settings.

Common Applications

Electrical Equipment Rooms

CO2 discharges cleanly without leaving conductive or corrosive residue, making the SF-20CO2 ideal for protecting server rooms, electrical panels, switchgear, and control rooms where dry chemical agents could cause secondary damage.

Flammable Liquid Storage Areas

Rated Class B, this extinguisher is designed to suppress fires involving flammable liquids and gases, making it appropriate for fuel storage areas, paint booths, and chemical handling zones on construction sites and industrial facilities.

Industrial and Manufacturing Facilities

The corrosion-resistant construction and industrial-grade components make the SF-20CO2 well suited for manufacturing plants, machine shops, and processing facilities where both flammable materials and electrical hazards are present.

Corrosive Environments

The polyester powder coat finish and stainless steel hardware are specifically noted as well suited for corrosive environments, such as chemical processing plants, wastewater facilities, and marine or coastal installations.

Compatible Materials

• Flammable liquids (Class B) — fuels, solvents, oils, paints
• Flammable gases (Class B)
• Energized electrical equipment (Class C) — panels, switchgear, motors, servers

Product Documents

• Strike First CO2 Fire Extinguisher Product Sheet

Frequently Asked Questions

Q: What fire classes does the SF-20CO2 cover?
A: The SF-20CO2 is rated for Class B fires (flammable liquids and gases) and Class C fires (energized electrical equipment). It carries a 10-B:C UL/ULC rating.

Q: Does the SF-20CO2 leave residue after discharge?
A: Carbon dioxide extinguishers discharge a clean gas agent that dissipates without leaving residue, making them suitable for use around sensitive electrical equipment and in areas where cleanup or contamination is a concern.

Q: What standards does the SF-20CO2 comply with?
A: The SF-20CO2 meets or exceeds ANSI/UL 154, ANSI/UL 711, CAN/ULC-S503, CAN/ULC-S508, and complies with NFPA 10 Standard.

Q: What is the warranty on the SF-20CO2?
A: Strike First provides a 5-year warranty on the SF-20CO2.

Q: What mounting bracket is included with the SF-20CO2?
A: The SF-20CO2 comes with a standard wall bracket. No optional vehicle brackets are listed for this model.

Q: Is the SF-20CO2 approved for use in corrosive environments?
A: Yes. The unit features a super durable polyester powder paint finish with superior corrosion resistance and stainless steel hardware, and is specifically noted as well suited for corrosive environments.