
Originally Posted by
dvldoc
Speaker magnets are nothing compared to hard drive magnets of the same size. But it should still pick up a very good amount of particles. If you want to find out the pull force of the magnet you have you have to lift something of a known weight then you will know how strong it actually is. A 2-3 gram Nd magnet can pull 1k* it's own weight Hard drive magnets are stupid strong. Most can hold through your hand.
Bosch filters will have country of origin on the filter just like any other the ones sold there come from Korean/Malaysian and will have a crimps on the gasket. I have no real conclusion on how they come wrapped from the factory most I have seen have just plastic at the bottom which is more of what you see out of China but it could be how they are made.