Zip, Presidents Club members have access to Northwest WorldClubs. The WorldClubs Lounge at
IAD, a self-serve facility, is located within the same concourse as Continental, a short distance from the CO gates. No need to clear Security again!
I've always enjoyed my visits to that club.
Washington-Dulles WorldClubs Lounge
Midfield Terminal
Concourse B (Adjacent to Gate B19)
703.661.0675