CFS Reverse Osmosis Filter Replacement Kit, Sediment & Carbon, 2 Sets | 4 cartridges - 2 sediment + 2 carbon block; two full change-outs for under sink RO systems; fits 10 x 2.5 in housings

CFS Reverse Osmosis Filter Replacement Kit, Sediment & Carbon, 2 Sets | 4 cartridges - 2 sediment + 2 carbon block; two full change-outs for under sink RO systems; fits 10 x 2.5 in housings