No, I am not sure. I bought two. Sorry. I definitely paid more than $20 for two. It started raining at the park as we were in line at MK for our pre-opening ADR. My SIL and her family were there at the same time and they said they were cheaper at the resort they were at.
The kids one was cheaper but I definitely paid more than $20 for the two of them. I had to buy an adult one for her because she is 10. The kids one was way too short. She would have been soaked. Not that we weren't anyway.