The pool sand filters offer a fine filtration correct (20 to 50 microns) at an affordable price. Its maintenance is made very simple what results in the fact that the filter pool is the most popular in the market.
Sand filters
The sand filters are, for their easy use, the most installed in a large number of pools.
Its filtering material can be silex sand or glass, making them very easy to use and low maintenance work.
Consult usif you want more information about filters.