Finerfilters 4 Stage Aquarium Reverse Osmosis Replacement Filters Complete filter pack includes both pre filters and an empty refillable housing which can be customised with a media of your choice for use as a 3rd stage or post filter ideal for filtering tap water for your Aquarium. This filter pack includes: 1 x 10" x 2.5" - 5 Micron Sediment Filter 1 x 10" x 2.5" - 5 Micron Carbon Block Filter 1 x 10" x 2.5" - Empty Refillable Drop In Media Pod
