501 Single Hungs
Primarily for commercial use, the single-hung 501 is a built for the unique demands of magnum applications. Maintaining a DP 35 commercial rating, it comes standard with a balance according to the size of window and a large 8/4 non-tilting sash. The Single hung 501 is also available with a half screen and comes in larger than standard sizes to suit a variety of larger than standard installations.
Half-Screen. For more details view Screen Option section.