Cotton filter is a filter made ​​of polyurethane foam through openings in addition to film open mesh structure has become the main framework of this cotton filter porosity higher than 97%, the opening rate of 99%, with good air permeability and high mechanical strength, and therefore as a filter material having a small flow resistance, high efficiency filter out features. and can be repeatedly washed, showing from durable, economic, environmental and other advantages. mainly used in aquarium filters, air conditioner filter layer, ceramic foam filter carrier.
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