Andersen Heritage Brand New Sliding Door "Single Panel". This gorgeous Panel is the LEAD Panel and Locks from the Inside of the structure, not the outside. That is why it is being replaced. It is in perfect condition. It could also be used perhaps as a fixed window? The Original Cost was over $5,000 for a 3 panel stacking door. This is again ONLY the LEAD sliding Panel with an Up/Down Locking Mechanism.