Key Standard Features: 7/8" double-strength insulated tempered glass system provides superior insulation and sound-deadening properties Fusion-welded panel and frame corners create strong, unitized components to prevent air and water infiltration Wear-resistant anodized aluminum sill endures the worst traffic Internal weeping system and a 15-degree sloped sill efficiently diverts water “Q-Lon” high-performance weather seals protect from the elements Multi-chambered, maintenance-free vinyl profiles are impervious to water, air pollution and normal weathering Top and bottom latching mechanism for a more secure hold Solid brass handle with keyed mortise lock and dead bolt for an extra measure of safety Key Features Make a Clear Difference: Full-length, fixed-gear hinge prevents panel sagging The hinging mechanism is the door component most likely to fail. The 3000 Series Swing Door features a full-length rustproof, anodized aluminum, fixed-gear hinge to eliminate panel sagging for the lifetime of any door. This unique component runs the entire length of the door panel and is anchored to underlying aluminum reinforcing within the vinyl door styles and center astragal. Top and bottom latching mechanism Solid brass handle with keyed mortise lock and dead bolt