Pura 41407002 Quick Change Carbon Block Filter 5 mic. Pura 41407002 Quick Change Carbon Block Filter 5 mic ThePura 41407002 Quick Change Carbon Block Filter is the replacement filter for QCRO and QCUF systems. This 5 micron filter reduces chlorine taste and odor to protect the membrane and improve the quality of your water. Reduces chlorine taste and odor Filter capacity: 2000 gallons Micron Rating: 5 micron Should be replaced every 6 months PURA QCRO 4 Stage Quick Change RO System Specifications PURA QCRO 4 Stage Quick Change RO System Manual PURA QCRO Performance Data Sheet Pura QCRO and QCUF Replacement Filters