Valve Core Base for a Faucet

FIG. 1 is an upper perspective view of a valve core base for a faucet showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines illustrate portions of the valve core base for a faucet that form no part of the claimed design.