Originally Posted by 1idejim
stop valve could also be the culprit.
Right now, the stop valve is the noise maker due to it being throttled down.
Originally Posted by Waterlogged
Not sure if I'm following you, but would this work?
Mini-Angle Stop Hammer Arrestors by Precision Plumbing Products
Haven't seen those, but that is the cleanest looking mini arrestor I have seen. Still an eye sore and it would require changing out the stops. I was thinking more of a check that fits onto the end of the supply hose and then connects to the stop. The check wouldn't necessarily have to stop all the hammer flow, just reduce it to the point where it becomes a non-issue. Perhaps something like a one way flow disc.