This part is correct for the 1969-72 GTO LeMans Tempest cars with factory air conditioning.
It may also work fine on other Pontiac models as well as Buick, Oldsmobile, Chevy & Cadillac since they use the same POA valve, but please do your own research before assuming that it will fit anything other than its correct application.
All heating and air conditioning parts are stored indoors in dry conditions.