The Ultra 5050 2-Panel and 5100 3-Panel Sliding windows have sashes that open horizontally.  The 5050 has one fixed sash and one operating sash. The 5100 has a fixed sash in the center and an operating sash on each end. The multi-chambered sashes and frame are fusion-welded for strength and weather resistance. Tandem sash rollers and a continuous handle allow for easy sash operation.

Ultra 5050 and 5100 window units contain 3/4" insulated glass made with a Warm Edge insulating system. The meeting rails have a full interlock for extra security. Finned weatherstripping helps block air infiltration.

Like the entire Ultra line, a groove around the master frame allows simple stacking and mulling of multiple units and the easy application of supplemental profiles. The Ultra 5050 and 5100 are available with or without an integral nailing fin.