Replacement filter complete set for HQ7Replacement filter complete set for HQ7 1. Sediment Filter The sediment filter is a retreated filter which removers ordinary sediments (clay, rust, sand, etc) In the water through 1~10micron(1 1,000mm) pores. The sediment filter cartridge is easy to change and allows the customers. To verify the filters level of contamination through naked eyes, providing an high reliability. 2. PCB filter (Post carbon block filter) The filter has the function