FIG. 1 is perspective front view of the gas hose with gauge; FIG. 2 is a first side view thereof; FIG. 3 is a second side view thereof; FIG. 4 is a first end view thereof; FIG. 5 is a second end view thereof; FIG. 6 is a top view thereof; and, FIG. 7 is a bottom view thereof. The broken lines in the drawings form no part of the claimed design.