The Aqua Flo 41407011 Annual Filter Replacement Kit for QCRO includes all of the replacement pre and post filters needed to keep your QCRO 4 Stage Quick Change Reverse Osmosis System running for an entire year. The kit includes two sediment pre filters and three carbon block pre/post filters. The pre filters should be replaced every 6 months, the post filter every 12 months.

Complete set of pre and post filters Includes two 41407001 sediment prefilters and three 41407002 carbon block filters. Replace pre filters every 6 months, post filter ever 12 months.