Amerex B500 Fire Extinguisher
- Fire Extinguisher
A step up in capacity and build quality from basic residential extinguishers, worth it for a garage or workshop that sees more fire risk than a kitchen alone.
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How it ranks among the 10 fire extinguishers we track
4.6★ across 2,300 Amazon ratings, Bayesian-smoothed toward the category average.
2,300 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 10 fire extinguishers we track - how the scorecard works · full fire extinguishers data report. Confidence: limited - incomplete product information.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Amerex B500 is a 5 lb ABC dry chemical fire extinguisher rated for Class A, B and C fires, covering ordinary combustibles, flammable liquid spills and live electrical equipment. It discharges in about 14 seconds through an all-metal aluminum valve.
Amerex is a commercial fire equipment maker, and the B500 carries that lineage into a home-sized unit: an all-metal valve assembly rather than a plastic head, sized at 5 lbs for a garage, workshop or larger kitchen than a typical 2.5 lb residential can covers. A wall bracket is included for mounting.
- 5 lb ABC dry chemical agent
- Rated for Class A, B and C fires
- About 14 second discharge time
- All-metal aluminum valve, wall bracket included
Who it's for
Suited to a garage, workshop or anyone who wants a bit more capacity than the smallest residential extinguishers offer, with metal-valve construction built to hold up. Not the pick for someone who wants the lightest, smallest possible unit for a single cabinet.
Strengths and trade-offs
Drawn from this product's published specifications.
- All-metal aluminum valve construction
- 5 lb capacity covers more than a small residential can
- Covers Class A, B and C fires in one unit
- Wall bracket included
- Heavier and bulkier than a compact 2.5 lb kitchen unit
- No mention of a rechargeable option in the listing
Performance notes
The ABC dry chemical agent covers ordinary combustibles, flammable liquid spills and live electrical equipment in one unit, discharging over about 14 seconds through an all-metal aluminum valve rather than a plastic one. The 5 lb capacity gives more working time and coverage than the smaller 2.5 lb residential cans.
Specifications
| Brand | Amerex |
|---|
Other Amerex fire extinguishers
How it compares
This product against the closest alternatives we track in fire extinguishers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Amerex B500 Fire ExtinguisherThis product | 4.6 / 5 | 2,300 | 2.7 / 5 |
| First Alert Fire ExtinguisherFirst Alert | 4.8 / 5 | 39,200 | 4.9 / 5 |
| Kidde Auto 10 Fire Extinguisher for Cars and TrucksKidde | 4.8 / 5 | 2,300 | 4.7 / 5 |
| First Alert EZ Fire SprayFirst Alert | 4.8 / 5 | 12,600 | 4.8 / 5 |
| Kidde Basic 110 Fire Extinguisher for HomeKidde | 4.8 / 5 | 30,200 | 4.7 / 5 |
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Questions about the Amerex fire extinguishers
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What fire classes does the Amerex B500 cover?
It's rated ABC, covering ordinary combustibles (Class A), flammable liquids (Class B) and live electrical equipment (Class C).
How long does it discharge for?
About 14 seconds.
Does it come with a mount?
Yes, a wall bracket is included.