Watts Premier OFPRFC Oneflow+ Radial Flow Carbon Block Filter

Reduction of sediment chlorine taste and odors 20 micron rating Dirt holding capacity up to 2.2 lbs/1 kg Chlorine reduction up to 50000 gallons 189000 liters at 3 GPM 11.34 lpm This replacement OneFlow Plus radial flow carbon block 20 micron cartridge has a dirt holding capacity up to 2.2 pounds or 1 kilogram. It reduces chlorine taste an odors up to 50000 gallons or 189000 liters at 3 GPM or 11.34 liters per minute. Annual replacement recommended.