The ornamental design for a singlelever shower mixer, as shown and described.
FIG. 1 is a front perspective view of a single lever shower mixer according to the present invention.
FIG. 2 is a front view of the single lever shower mixer of FIG. 1.
FIG. 3 is a rear view of the single lever shower mixer of FIG. 1.
FIG. 4 is a left side view of the single lever shower mixer of FIG. 1.
FIG. 5 is a right side view of the single lever shower mixer of FIG. 1.
FIG. 6 is a top view of the single lever shower mixer of FIG. 1; and,
FIG. 7 is a bottom view of the single lever shower mixer of FIG. 1.
A portion of the faucet handle is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.
The broken lines showing portions of the faucet handle form no part thereof.