Help me identify an A/C component

[Joshua C]

Listers,
I need to replace my Low pressure A/C hose from the pump to the...well it's
a silver can under the black splash guard that covers the heater box etc...
what is that silver can?  I looked in my Bently but couldn't find an ID.

TIA

Joshua Cummings
91 200 avant
Woods Hole, MA.

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