The filtration rate provided by the cartridge, in other words, its maximum performance (throughput).
This indicator is directly related to the regular use of the cartridge (see above). It is also worth considering here that usually the finer the cleaning, the lower the performance of the filter element. Therefore, for example, flow pre-filter systems at the entrance to an apartment can be performant enough not to slow down the flow, but getting drinking water is inevitably associated with a slowdown in the process. This is especially true for reverse osmosis systems. Filter jugs also do not differ in performance, because they work without pressure. In addition, we note that when installing several filters in series (in a flow system), the final filtration speed will be limited by the speed of the slowest filter.
In general, when choosing a cartridge for a jug, a filter
for a tap or a travel filter, you can not pay much attention to this parameter — performance is usually guaranteed to be enough to work for its intended purpose. Detailed recommendations for other types of filters can be found in special sources.
Country of origin of the cartridge.
Note that this paragraph most often indicates not the place of actual release of the consumable, but the country of origin of the brand under which it is sold; this country is indicated by the "homeland" of the brand or by the location of the manufacturer's headquarters. At the same time, this moment cannot be called critical. The fact is that most of the stereotypes that link the quality of a product with the country of origin are unfounded; and quality in fact depends mainly on how carefully this or that manufacturer treats this issue. So paying attention to the country of origin makes sense only if you fundamentally want (or do not want) to support a company from a certain state or region.
Now on the market there are cartridges with such countries of origin:
Germany,
Italy,
China,
Korea,
Poland,
Singapore,
USA,
Taiwan,
France.
