650 Series Sliding Patio Door Easy to operate and maintain, this sliding door will be sure to delight you. THE ELITE DOUBLE-HUNG WINDOW COMES STANDARD WITH: 5 1/2″ frame depth. 1″ insulated tempered DS LowE glass. Wood reinforced master frame for optimum strength. Monorail with adjustable tandem rollers for smooth gliding. Interlocking rails to prevent drafts. Handle set with a double-point locking system and a keyed lock. Sloped sill. Heavy-duty screen. Standard colors: 3 interior, 13 exterior. Elite Brochure | Elite Color & Muntin Bar Options | Heat Lamp Demo Ready to Build? Let’s Make It Happen Get Started