Kidde 21030904 MAR210 Mariner 210 4 lb ABC Marine Fire Extinguisher – 2-A:10-B:C with Strap Bracket

Kidde 21030904 MAR210 Mariner 210 ABC Marine Fire Extinguisher

The Kidde 21030904 MAR210 Mariner 210 is a higher-capacity marine fire extinguisher designed to protect against a broad range of common boating and watercraft fire hazards. Unlike BC-only marine extinguishers, the MAR210 carries a 2-A:10-B:C UL rating, providing protection for ordinary combustibles as well as flammable-liquid and energized-electrical fires.

The MAR210 contains 4 lb of multipurpose ABC dry chemical agent and provides a 12–18 ft. discharge range. Marine-grade aluminum and stainless-steel construction provides enhanced corrosion resistance for saltwater, freshwater and outdoor environments, while an included UL-approved strap bracket allows secure mounting aboard boats and watercraft.

Key Features & Benefits

• 2-A:10-B:C UL rating: Multipurpose protection against Class A, Class B and Class C fire hazards.
• 4 lb ABC dry chemical agent: Provides greater firefighting capacity than Kidde's smaller Mariner models.
• Class A protection: Suitable for ordinary combustible materials including wood, paper and textiles in addition to common marine fuel and electrical hazards.
• 12–18 ft. discharge range: Extended reach allows the operator to attack a fire from a greater distance than smaller Mariner extinguishers.
• Flexible discharge hose: Helps direct the extinguishing agent toward the base of the fire.
• Marine-grade construction: Seamless aluminum cylinder with aluminum and stainless-steel valve, handle and lever components.
• 12X corrosion resistance: Kidde states its current Mariner construction provides 12X greater corrosion resistance compared with referenced industry saltwater test standards.
• U.S. Coast Guard approved: Approved for marine applications when used with the included UL-approved strap bracket and exceeds the 5-B rating requirement.
• 12-year service-free design: Single-use configuration does not require the six-year internal examination applicable to certain rechargeable extinguishers.
• 12-year limited warranty: Backed by Kidde's manufacturer warranty.

Kidde 21030904 MAR210 Specifications

ABC Protection for Common Marine Fire Hazards

A key advantage of the MAR210 is its 2-A:10-B:C multipurpose rating. It can be used on all three common classes of fire:

• Class A: Ordinary combustible materials such as wood, paper and textiles.
• Class B: Flammable liquids and gases, including common fuel-related hazards.
• Class C: Fires involving energized electrical equipment.

This broader ABC capability is particularly useful when a vessel contains combustible interior materials in addition to fuel and electrical hazards.

Greater Reach & Firefighting Capacity

The MAR210 contains 4 lb of extinguishing agent and provides a discharge range of approximately 12 to 18 feet with a discharge duration of approximately 13 to 15 seconds.

Kidde describes the MAR210 as providing 2X the Class A firefighting capability of a 1-A:10-B:C rated extinguisher. For buyers comparing Mariner models, the MAR210 provides substantially greater Class A capability and longer discharge reach than the smaller BC-only models.

Built for Marine & Outdoor Environments

Marine fire extinguishers can be exposed to moisture, salt and other conditions that accelerate corrosion. Kidde builds the current Mariner series using corrosion-resistant aluminum and stainless-steel components specifically for marine and outdoor environments.

Kidde states that its current Mariner construction provides 12X more corrosion resistance compared with industry saltwater test standards, helping the extinguisher withstand long-term exposure to challenging marine conditions.

Where Is the Kidde MAR210 Best Used?

• Recreational boats and watercraft
• Cabin boats and vessels with combustible interior materials
• Fishing boats
• Powerboats and motorized watercraft
• Marine and dockside applications
• Outdoor environments requiring multipurpose ABC fire protection

Is the MAR210 Right for Your Boat?

The MAR210 is worth considering when you want multipurpose ABC protection rather than BC-only coverage. Its Class A rating adds protection for combustible materials such as wood, paper and textiles, while its 10-B:C rating addresses flammable-liquid and energized-electrical hazards.

Its 4 lb agent capacity, flexible discharge hose and 12–18 ft. range also make it a higher-capacity choice than the compact Mariner extinguishers where additional reach and firefighting capability are desired.

12-Year Service-Free Design

The MAR210 is a single-use extinguisher with a 12-year service-free design. Under NFPA 10, single-use fire extinguishers do not require the six-year internal examination applicable to certain rechargeable extinguishers.

Service-free does not mean inspection-free. Required external inspections and corrective actions still apply. A single-use extinguisher should be replaced after discharge or when its condition indicates replacement is necessary.

Frequently Asked Questions

What is the difference between 21030904 and MAR210?

21030904 is Kidde's ordering number for this extinguisher configuration, while MAR210 is the Mariner 210 model designation.

Is the Kidde MAR210 an ABC or BC extinguisher?

The MAR210 is a multipurpose ABC extinguisher. Its 2-A:10-B:C UL rating means it is rated for Class A ordinary combustibles, Class B flammable liquids and Class C energized electrical equipment.

How much extinguishing agent does the MAR210 contain?

The MAR210 contains approximately 4 lb of multipurpose ABC dry chemical agent.

How far does the MAR210 discharge?

Kidde specifies a discharge range of approximately 12 to 18 feet and a discharge time of approximately 13 to 15 seconds.

Does the MAR210 include a mounting bracket?

Yes. The Kidde 21030904 includes a UL-approved plastic strap bracket for mounting aboard boats and watercraft.

Is the Kidde MAR210 U.S. Coast Guard approved?

Yes. Kidde identifies the MAR210 as U.S. Coast Guard approved when used with the approved strap bracket. Its 2-A:10-B:C rating exceeds the 5-B rating requirement identified by Kidde for this marine application.

Can the MAR210 be recharged?

No. This MAR210 configuration is a single-use / disposable extinguisher and should be replaced after discharge.

What is the warranty?

The MAR210 carries a 12-year limited manufacturer warranty.