The ornamental design for a coupling bushing for a replaceable filter, as shown and described.
FIG. 1 is perspective view of a coupling bushing for a replaceable filter according to one embodiment of the present invention forming a an ornamental configuration in plan view;
FIG. 2 is a top plan view of the coupling bushing for a replaceable filter of FIG. 1;
FIG. 3 is a right elevation view of the coupling bushing for a replaceable filter of FIG. 1 with the left elevation view of the coupling bushing for a replaceable filter being identical to the right elevation view;
FIG. 4 is a front elevation view of the coupling bushing for a replaceable filter of FIG. 1 with the rear elevation view of the coupling bushing for a replaceable filter being identical to the front elevation view; and,
FIG. 5 is a perspective view of the coupling bushing for a replaceable filter of FIG. 1, with the replaceable filter shown in phantom and forming no part of the claimed design.