Kidde Mariner 5BC Fire Extinguisher for Boats — 2 lb Dry Chemical

Equip your vessel with the Kidde Mariner 5BC Fire Extinguisher for Boats. This single-use, 2 lb dry chemical unit is designed to handle fires that commonly arise on watercraft, including flammable liquids and gases (Class B) as well as electrical equipment (Class C). Its compact, marine-ready build makes maintenance simple while delivering dependable, on-deck safety.

Rugged, marine-grade construction

Crafted from lightweight aluminum with a corrosion-resistant metal valve and a rust- and impact-resistant stainless steel handle, this extinguisher stands up to sun, spray, and humid cabins. The easy-to-read pressure indicator helps you confirm readiness at a glance. With 12-year UL listing and a 12-year manufacturer warranty, ongoing peace of mind is part of the package.

• Aluminum body with stainless-steel components for saltwater resilience
• 12-year service life with UL listing and a 12-year warranty
• Two pounds of sodium bicarbonate dry chemical potent against common boat fires

How it works and how to use

The Kidde Mariner 5BC uses the PASS method—Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep side to side. Its discharge time is 8–12 seconds, with a 4–6 foot range and about 100 PSI operating pressure, giving you audible and visual feedback as you respond.

• Pull pin for quick activation
• Aim at the base of the flames, sweep, and monitor the spray
• Discharges 8–12 seconds to maximize effectiveness
• Range of 4–6 feet for a safer approach

Safety, access, and maintenance

US Coast Guard approved and UL listed, the extinguisher includes an easy-to-install strap bracket for quick mounting near the helm or on a rail. It’s compact enough to fit small craft yet robust enough for year-round use. The system uses a non-toxic dry chemical that won’t corrode metal surfaces, though it may cause skin irritation if touched.

• USCG approved, UL listed
• Easy-to-pull safety pin for fast activation
• Easy disposal and replacement rules: replace after discharge or after 12 years

Keep this extinguisher within easy reach where fires are most likely to start, and consider placement alongside other safety gear. Regular checks of the pressure indicator help ensure readiness, and when the time comes, follow disposal and replacement guidelines to maintain protection on the water.