New reverse osmosis units from d d aquarium solutions the d d full ro systems come with high quality tfc membrane and housing with 10 replaceable sediment and carbon filters what is included ro membrane housing high quality ro membrane 10 inch sediment filter housing and cartridge 10 inch carbon filter housing and cartridge push fit connections for easy use cartridge spanner ro hose mains watrer connector instructions for use max output per 24 hrs 62 uk gallons 283 ltrs