A bulkhead value unit for the ventilation system on the OH Perry Frigate. The item “US Navy Ventilation valve Oliver Hazzard Perry Frigate” is in sale since Monday, March 25, 2019. This item is in the category “Collectibles\Transportation\Boats & Ships\Military\Other Naval Collectibles”. The seller is “lostships” and is located in Des Plaines, Illinois. This item can be shipped to United States.