[T3] What's this?

[abakr@pacbell.net]

I'm in the process of restoring a 69 Notchback and after I removed the
body, I found something mounted under the body behind the rear seat area
and I don't know what it is.  It tucks up under there pretty well and is
definetely supposed to be there.  You can tell by the way it's mounted.
The hoses from the body connect to it and it has hoses leading to the
engine, I believe their the fresh air/heater hoses.  It has a VIN type
plate attached to it and it also has an adjustor of some type that is
accessible via the trunk compartment (from above).  Also, there was a
"muffler" type pipe that was connected to it that spanned the entire
engine and pointed to the right rear of the car, had a half-type hole
cut into it facing down.

I can't find any info on what this is for, can anyone tell me what this
unit is and what it's purpose is?

Thanks,
Anthony

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