EcoFast® EF100/200 Replacement Filter
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 in my store - W9410120
All filters have been tested to meet or exceed NSF/ANSI Standards 42 & 53 This listing is for one filter only W9410107.