-Compatible Replacement Ionizer Filter compatible with HG-N typeToyo Ange Impart (ONLY FOR NEWER MODELS sold after January 1, 2011); NOT compatible with K8 machine; NOT compatible with the original HG type machines. -Using high-quality material only. -Filter replacement interval: Approx. 6 months (depending on the water quality) -Filtration Capacity: 12,000L (depending on the water quality) *This is a compatible replacement filter made by Korean manufacturer. Made in Korea -Compatible with water ionizers using the HG-N filter. -Contains Granular Activated Carbon (Flushing Process is required after installing new filter. During the Flushing Process, black water may come out for a short time.) *This filter is NOT compatible with the OLDER machines (Sold BEFORE JAN. 1 2011) which use HG type filter. The HG-N type filter has TWO notches (indents) on the centered hole rim of filter and machine. PLEASE OPEN THE FILTER COVER AND CHECK YOUR OLD FILTER AND THE FILTER BASE! Use the Cleaning Cartridge every 6 months to maintain the performance of ionizers. 1. Power off the unit and unplug it. (Be certain to shut off the faucet. Never power on the unit during cleaning procedure.) 2. Remove the filter (Check if both o-rings were removed from the filter base.) 3. Install the cleaning cartridge. 4. Place the flexible hose and the secondary hose into a cup. 5. Turn on the faucet until both of the hoses are fully submerged. 6. Leave the unit sitting for 3~5 hours. (Best to sit overnight) 7. Return the flexible hose and the secondary hose to their positions. 8. Turn the water on and let run for 5~10 minutes. 9. Turn off the water. 10. Remove the cleaning cartridge and install the water filter. 11. Place the filter cover back to the unit. 12. Let the water run for 3 minutes. 13. Plug the unit back in and turn on the power. For more detailed instruction, please search the keywords, “ How to Clean Water Ionizer”