what is this component in engine bay?

I thought it might be an AC component considering that hardline ran towards the front in front of the radiator and went to nothing. I'm removing it now should I hang on to it or toss it? a quick google search has them new ranging from 15$ to 90$ . I won't have a use for it thats for sure.

toss it.

not factory lines or routing like the others you see for sale. The driers are typically re-used.