98 Volvo s70. Part identification

[troutfanatic]

Can someone please identify this part? I just finished installing a new radiator and was making sure everything was hooked up. I spotted this lying on the frame at the bottom below the motor. I don't know if I knocked it loose or what. Thank you for any help.

[jcdillin]

That would be part of your evap system, depending if yours is turbo it may look something like this diagram.