that’s still their name in portuguese (ouriço do mar)

if you don’t have enough pressure the water comes out too slow

Brazil.

I don’t have the faucet filter, but I never heard any complaints about them. I’d guess that if your water has good pressure you won’t have any problems with them.

In my country most houses will have one of these:

I think the prices change according to the demand at the moment. I have seen prices skyrocketing when the subway stopped working in my city. But you might be correct. I wouldn’t doubt that they use psychological strategies like that on custumers.