Amerex 423 (20 lbs) ABC Multi-Purpose Dry Chemical Fire Extinguisher

Maximum Multi-Purpose Fire Protection for Large-Scale Applications

The Amerex 423 20 lb ABC Multi-Purpose Dry Chemical Fire Extinguisher delivers comprehensive protection against Class A, B, and C fires. Featuring specially fluidized and siliconized mono ammonium phosphate dry chemical, this maximum-capacity extinguisher provides extended firefighting capability for large commercial and industrial spaces.

Why Choose the Amerex 423?

• 20 lb capacity – Maximum size provides extended discharge time and superior firefighting capability for large areas
• ABC multi-purpose protection – Fights Class A (ordinary combustibles), Class B (flammable liquids), and Class C (electrical) fires
• Mono ammonium phosphate agent – Chemically insulates Class A fires by melting at 350°F and coating surfaces
• Electrically non-conductive – Safe to use on energized electrical equipment
• 6-year warranty – Backed by Amerex's commitment to quality
• Aluminum valve – Lightweight yet durable construction
• Stored pressure design – Instant discharge for immediate fire suppression
• Drawn steel cylinder – Dependable construction with high gloss polyester powder paint finish
• All-metal valve construction – Built for reliability and long-term performance
• Wide temperature range – Operates reliably from -65°F to 120°F

Ideal For:

Large warehouses, manufacturing facilities, industrial plants, commercial buildings, loading docks, and any extensive space requiring maximum fire protection coverage.

What It Protects Against:

• Class A: Wood, paper, cloth, trash, and other ordinary combustibles
• Class B: Gasoline, oil, grease, solvents, and other flammable liquids
• Class C: Energized electrical equipment and wiring

Professional Features:

• Stored pressure design for instant discharge
• Large loop pull pin for easy activation
• Bar-coded and bilingual labels for easy identification
• Easy and economical to maintain and service
• Rechargeable for long-term use
• UL Listed and manufactured to ANSI/UL standards
• Complies with NFPA 10 standards
• ISO-9001/ISO-14001 certified manufacturing

Why Choose 20 lb Over Smaller Models?

The maximum 20 lb capacity provides:

• Longest discharge time for fighting large-scale fires
• Greatest coverage area for extensive spaces
• Most firefighting agent for stubborn or spreading fires
• Best suited for industrial and large commercial applications

How ABC Dry Chemical Works:

The mono ammonium phosphate agent works three ways: it chemically insulates Class A fires by melting at approximately 350°F and coating surfaces, smothers Class B fires by breaking the chain reaction, and is electrically non-conductive for safe use on Class C electrical fires.

Safety First: Mount your fire extinguisher in an accessible location near potential fire hazards. Regular inspection and maintenance ensure your extinguisher is ready when you need it most.

Need a mounting bracket? Check out our heavy-duty mounting bracket options for secure, professional installation of 20 lb extinguishers.

View Amerex Dry Chemical Data Sheet

Manufactured and Tested to ANSI/UL Standards, Complies with NFPA 10 Standard ISO-9001 / ISO-14001 Certified UL LISTED

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