Thanks for posting. I am unable to identify the wool pile replacement you'd need based on the photo provided. I can't guarantee that we'd be able to recommend a replacement but I'd be happy to review your measurements.
The measurements you'll need to obtain are the width of the base of the pile as well as the height of the pile. Also, not nearly as important as the measurements; if you are able, please provide a photo of the end profile of your wool pile.
We have a few types of wool pile with a 3/16" base, however, you'll need to be sure to compare the measurements from each to determine which might be the right fit.
I've linked each of our pieces of wool to this thread. Carefully compare the base width and the pile height to determine which might work for you, if any.