QMP USA‘s innovative and patented QMP 1000 faucet filter is available with the classic lever design or ceramic disk faucet. It’s ideal for seasonal use (RVs, boats, bars, etc.) with a recommended cartridge life of 350 gallons (1,324 liters) or three months. The cartridge changes with a quarter turn from above the counter and once installed is easily removed from above the sink. It includes a five-micron rated carbon block. Optional items include a three-pack of replacement cartridges, good for one year; 0.6-micron rated cartridge and 0.5-micron rated lead removal cartridge.