As the title suggests, is this an Amazon purchase, or are there other places I should look? I'm looking to buy three for my house, one on every level. The fire department is about 1/4 mile from me, I considered asking them (best place to purchase) but not sure if it's a waste of time.
Good for you for thinking ahead. Depends on what kind of extinguisher you want and what you reasonably expect to use it for.
The 2A10BC extinguishers seem to be the typical "go-to" that you see pretty much everywhere, and while they are usually better than nothing, they do have some drawbacks worth thinking about.
1) They make an incredible mess which is better than losing your house but it is still an incredible mess.
2 )More importantly -- they really are not that effective on ordinary combustibles like wood, paper, furnishings, and the things that usually burn in a house.
3) They give little to no protection against re-ignition of hot materials as there is no cooling effect.
4) It can be a little tough to breathe or see when you discharge of these in an enclosed space.
That said, it's always a good idea to have one of them in or near a kitchen in case there is an electrical fire on something you cannot unplug or a grease fire in something you cannot cover.
For elsewhere in the house it's worth thinking about a pressurized water extinguisher. Non-toxic,clean up with a mop, highly effective on wood, paper, and ordinary combustibles, and if you have an air compressor you can recharge it yourself, which means you and family members can practice with it.
There is no substitute for practice, even if it means lighting a small fire safely out in the yard and extinguishing it.