Joe Joe, it does. I was able to get the problem sorted out by scouring the web and some trial and error. The valve comes with the flat ends of the stem that the handle screws into aligned with the plastic part that indicates H/C. After some trial and error I was able to get it to mix but not turn off by turning the stem 90 degrees with the flat part (with the notch) on the bottom). I then removed the valve again, turned the notch to the "up" position and tried again, viola, hot-cold-warm. There's nothing in the literature about turning the stem one way or the other in the package but, luckily, forums like this one and others will help steer you in the right direction.