Produce pure drinking water for your home 1x Sediment Filter 41400008 2 x Carbon Block filter 41400009 1 x RO membrane element 33001033 50 gpd Complete Set of Replacement Filters Fits Hydrotech RO systems: HT101 Series (10105, 10106 & 10107), HT102 Series (10204, 10205, 10206 & 10207), HT123 Series (12301, 12302 & 12303), F-HT-9, F-HTF-9, 1240 Series E, M & Pro Systems. The New Hydrotech Compatible Replacement Filter sets with membrane 33001033, include 1 x Sediment Filter 41400008, 2 x Carbon Block Filter 41400009 and 1 x RO Membrane TFC 50 GPD