source for high temp hose insulation

[Konstantin Bogach]

Due to PITAness of routing A/C low pressure hose through the hole under
air box
I routed it through the opening for water drain under the accumaulator
(receiver/dryer).
As result the hose is as close as  4-5 inches  from the downpipe and
close to engine (over tranny bell and down to compressor).
I was not able to find any suitable insulation in FLAPS or maybe I
should've somethig very specific.
Can someone recommend  insulation  and its source for the hose?
It is prettry tight space there, so the more convinient to put it on the
better.

Thank you.
Konstantin