Usually installed in the water pipe after the water table, is the first house full of coarse water filtration equipment. Mainly to remove the precipitate impurities generated by the pipeline and bacteria, microbial debris, rust, sand and other particles greater than 5 microns or more impurities. To ensure that the network generated a large number of precipitation impurities will not cause harm to the human body, and the dark deposited pipes, taps, water appliances play a positive role in protection.
Can drink straight: can not
Filtration accuracy: general 5-300 (micron)
Advantages: no need for the core, practical, effective protection of other water appliances.
Disadvantages: filtration accuracy is low, not straight drink
Applicable: very wide scope of application, and there is universal use of the trend. Germany has legislation to require all buildings after 1988 must be installed pre-filter, so pre-filter in the US and European markets is extremely broad.
