ICON A5 MM : Fuel System : Coarse Fuel Filter : Coarse Fuel Filter Description
Coarse Fuel Filter Description
100088-00
The coarse fuel filter is one of two filters in the fuel supply line. The same filter, FX375-M, is used in both the MY17 and MY18+ A5 and is located above the fuel bladder/tank.Unlike the fine fuel filter, the coarse fuel filter can be cleaned and does not need to be replaced unless it is damaged.
Note: 
The orientation of the fuel filter is critical to the fuel system. (Coarse Fuel Filter Diagram/Schematic)