FIG. 1 is a front view of a filter housing case for use in a microbial water sampler showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a cross sectional view thereof at line 7-7 of FIG. 1;
FIG. 8 is a front perspective view of the lower component thereof, showing the design in an opened state where the upper component thereof is removed;
FIG. 9 is a front view of the component thereof, showing the design in the opened state; and,
FIG. 10 is a back perspective view thereof, showing in the design in a closed state where the upper and lower components are joined together.