How much is an albuterol inhaler at Walmart?

Alright, I'm sick and having problems with my asthma and I used the very last of my inhaler and I know I'm going to need one tonight and I'm wondering how much an albuterol inhaler is at Walmart? I've heard that it's around 50$ but I'm not sure because I've never bought one, my insurance just got canceled because I aged out of it.