Kidde Mariner 10 B:C Marine Fire Extinguisher, USCG 5-B Rated, Stainless Steel and Aluminum, 21030898K

The Kidde Mariner 10 is a USCG 5-B rated marine fire extinguisher built for use aboard recreational vessels. Carrying a UL rating of 10-B:C, it is designed for Class B flammable liquid fires and Class C energized electrical equipment fires, the two hazards most common in boat engine compartments and galleys. The Mariner 10 is a dry chemical extinguisher, holding a 2.5 pound agent charge that discharges over 8 to 11 seconds when activated.

Construction combines stainless steel and aluminum for corrosion resistance in the marine environment, supporting a 12 year service life and warranty. The unit is tested to 300 psi and rated for operation across a wide temperature range of -40 F to 120 F (-40 C to 49 C), so it performs reliably in cold storage lockers or hot engine spaces. A polymer mounting bracket is included for convenient wall installation and quick access in an emergency.

One Mariner 10 (5-B rating) meets the USCG minimum requirement for boats under 26 feet. Boats 26 to 40 feet require two 5-B rated extinguishers (or one 20-B), and boats 40 to 65 feet require three 5-B rated extinguishers (or two 20-B), so larger vessels may need multiple units or a higher-rated extinguisher.

Specifications

• Brand: Kidde
• Manufacturer Part Number: 21030898K
• UL Rating: 10-B:C
• USCG Approval: USCG 5-B Rated and Approved
• Extinguisher Type: Dry Chemical, Disposable
• Agent Charge: 2.5 pounds
• Discharge Time: 8 to 11 seconds
• Pressure Tested: 300 psi
• Temperature Range: -40 F to 120 F (-40 C to 49 C)
• Construction Material: Stainless Steel and Aluminum
• Mounting Bracket: Plastic Strap Retainer with Fold Down Straps, Model 322057 (included)
• Warranty: 12 Year Warranty
• Weight: 3.9 pounds

Mounting Options

• Plastic Strap Retainer with Fold Down Straps, Model 322057 (included)
• Steel Bracket with Metal Straps, Model 420118 (sold separately)
• Wall Hanger

Minimum USCG Requirements by Boat Length

• Boats under 26 feet: one 5-B or one 20-B rated extinguisher
• Boats 26 to 40 feet: two 5-B or one 20-B rated extinguisher(s)
• Boats 40 to 65 feet: three 5-B or two 20-B rated extinguishers

Frequently Asked Questions

What is the UL rating of the Kidde Mariner 10 fire extinguisher? The Kidde Mariner 10 (part number 21030898K) carries a UL rating of 10-B:C, meaning it is rated for Class B flammable liquid fires and Class C energized electrical equipment fires.

Is the Mariner 10 fire extinguisher USCG approved? Yes, the Mariner 10 is USCG 5-B rated and approved, which satisfies the Coast Guard's fire extinguisher requirement for recreational boats.

What size boat does one Mariner 10 extinguisher cover? One Mariner 10 unit, rated 5-B, meets the USCG minimum requirement for boats under 26 feet. Boats 26 to 40 feet need two 5-B rated extinguishers (or one 20-B), and boats 40 to 65 feet need three 5-B rated units (or two 20-B).

How much extinguishing agent does the Mariner 10 hold? The Mariner 10 holds a 2.5 pound dry chemical agent charge.

How long does the Kidde Mariner 10 discharge for once activated? Discharge time for the Mariner 10 is 8 to 11 seconds.

What is the Kidde Mariner 10 fire extinguisher made of? It is constructed from stainless steel and aluminum, materials chosen for corrosion resistance and a long service life in the marine environment.

Does the Kidde Mariner 10 come with a mounting bracket? Yes, the Mariner 10 includes a plastic strap retainer bracket with fold down straps (Model 322057). A steel bracket with metal straps (Model 420118) and a wall hanger are also compatible mounting options.

What temperature range can the Mariner 10 extinguisher be stored and used in? The Mariner 10 is rated for operation from -40 F to 120 F (-40 C to 49 C).

What warranty comes with the Kidde Mariner 10? The Mariner 10 is backed by a 12 year warranty.

How does the Mariner 10 differ from the Kidde Mariner 110 or Mariner 210? The Mariner 10 is rated 10-B:C with a 2.5 pound charge and no A rating for common combustibles. The Mariner 110 adds a 1-A rating with a 2.4 pound charge, and the Mariner 210 is rated 1-A:10-B:C with a larger 4.0 pound charge and a longer 13 to 15 second discharge time, making it suited to boats needing higher-rated protection.

What pressure is the Kidde Mariner 10 tested to? The Mariner 10 is tested to 300 psi.

Is the Kidde Mariner 10 rechargeable or a one-time use unit? The Mariner 10 is a disposable, non-rechargeable dry chemical fire extinguisher.