We utilize an XO or OX design with the non-operating lite glazed directly into the fully fusion welded extruded UPVC 4 5/8" frame. This enhances air infiltration performance and cuts installation time substantially.

Double Weatherstripping: Twin fin-seal weatherstripping provides a tight seal at the operator panel.

Aluminum Sill Cap: Our UPVC sill is enhanced with a heavy duty extruded aluminum cap. This makes the entire area more durable, for years of maintenance free use.

Hardware: Heavy-duty color matched hardware is standard. Brass, pewter or oil rubbed bronze hardware and keyed cylinder locks or painted 2-point locks are available options. Our sash operates on adjustable heavy-duty, stainless steel ball bearing rollers.

Aluminum Stiffeners: Our 4400 door houses a tubular aluminum-reinforced extrusion at the vertical meeting rail and vertical sash styles. We also have a galvanized stiffener in the mainframe head. This provides outstanding structural integrity and eliminates header sag, common in other vinyl doors.

Full Interlock: Our 4400 is fully interlocked at the vertical meeting rail and weatherstripped with fin-seal. Its flared interlock design provides for a solid fit at the meeting rail.

The 4400 Sliding glass door comes with 1" insulated clear or argon filled Loɳ high performance glass. Easy clean / self-cleaning or high impact laminate storm performance glass options are also available as well as 3 lite configurations.

WHITE

TAN

SANDSTONE