Do these trucks have cabin filters?

[JOAT]

Mine has a drain of sorts below where the evaporator meets the firewall. Not really a tube so much, but I seem to remember something covering it. Will look later

Looks like a 3/8" plastic pipe sticking thru the firewall below below the evaporator. May have had a hose on it at one time.

 

[BJS]

Looks like a 3/8" plastic pipe sticking thru the firewall below below the evaporator. May have had a hose on it at one time.

That's the drain tube or pipe whatever you want to call it some have a small rubber tube hanging off that pipe others it's just fallen off or was never put on there in the factory.

I've been meaning to climb under mine and snap a picture but I haven't stopped running before dark any day this week.