Filter performance characteristics filter is a device transport medium pipeline indispensable, usually installed in the inlet end of the valve, pressure relief valve, water valve or other equipment used to remove impurities in the medium, in order to protect the valve and the normal use of the equipment. When the fluid enters the home of a certain size filter cartridge, its impurities are blocked, and clean filtrate from the filter outlet, when you need cleaning, simply remove the removable cartridge, reload after treatment that is may, therefore, maintenance is very convenient.