What hose is this?

[Hayden_]

It's dripping something on the chassis. This is the first time I've noticed it! Is this a problem should I worry about it?

 

[Bossman]

A/C evaporator drain hose. No need to worry. You must have been running your A/C in hot/humid weather.

http://www.toyota-4runner.org/4th-gen-t4rs/62446-leaky-hose-coming-out-passenger-side.html

 

[Hayden_]

I do live in bama so yeah it's pretty humid haha thank you