Don't know who makes it for Giant, but I bought a Giant Control Tower 2 from the LBS and does everything I want. The only thing you might not like about it is the gauge is down by the base, but the numbers are a decent size. I've not owned a lot of pumps, but the pump head on this is great! The handle for locking it on the valve isn't stiff to operate, and the same hole for presta or schrader, and it holds! I've had it for many years and no problems.