Review (4/5): Exactly as described
I felt compelled to write a positive review to help anyone looking for a pump for the Wella bottles with bigger caps. I needed a pump for the Wella Post Color Treatment. A standard liter pump that I could pick up at any Sally Beauty wasn't going to do, so I hunted around until I found this. If you are looking for a pump for Wella Post Color Treatment, this is exactly what you need. If you are looking for a pump for the standard capped Wella liters (which I also have - the Wella Enrich duo), this will not work.
My only complaint, and this is not the fault of the seller, is the pump isn't attached at the top. It just kind of rests over the rest of the mechanism. I can tell that it was purposely designed this way and can only assume that there's another pump-like attachment out there to put on the top? Maybe a machine or something? I have no idea. Either or, the pump fits and the pump works. You won't be able to travel with this thing attached to your bottle (and I'm not entirely sure why you'd want to). Also - I'm pretty sure product would spill if the bottle tipped over with this pump attached due to the top part being detached and unsecured.