Aquasky ROT-5 Stage Reverse Osmosis Water Filter Kit and Membrane (2) 5 Micron Poly Spun Sediment Pre Filters (9 7/8") (2) 10 Micron Extruded Carbon Pre Filter (9 3/4") (1) In-Line GAC Post Filter (Granular Activated Carbon 10") (1) 50 GPD Membrane