My friend has a pet boutique and I saw one exactly like that one. I'm not sure if the cover is removable, but I think it might be. I looked on the website and it's not listed on there, but if you call her she can send you a pic and ship it to you from the store if you want it.
The store number is (415) 899-PETS her name is Lisa.
Rich is the other owner and he should know about it too. The website is
www.klydestreetboutique.com