This listing is for one AnquMetix® block - W9410107 (Blue Wrap). MultiMedia filter with AntiScale Yellow Wrap filter is not included. EcoFast® EF100/200 Replacement Filters MultiMedia filter with AntiScale - W9410104 (Yellow Wrap) AquaMetix® block - W9410107 (Blue Wrap) * EcoFast Twin Systems require one of each of the above filters, MultiMedia in the first stage, AquaMetix® filter in the second stage - Available as a package below - W9410120
