Would you think that the wrap just above the duct is potentially asbestos.
The silver wrap on the black insulated AC line.
It is a fiber material. There is only about a foot of it.

Furnace is 1971.

Most likely if it has been painted to disguise the AW.:mad:

lagging material
requires testing to confirm ACM
if the internal fibers along with all system junctions are properly mastic sealed and not exposed to air borne release
should not be a problem
the masking tape & duct tape (leakage) are probably the bigger system issues

As BA stated have to test but just looking at your pic does not appear to me to be asbestos there was a brown fiber glass insulation used in that time frame by HVAC guys including me;-):wink: