Prime-Line Products TH 23077 Entrygard Dual Arm Right-Hand Casement Window Operator with Stud Bracket &ndash; Repair Broken Windows REPLACEMENT PART  Repair broken windows with this Entrygard Dual Arm Right-Hand Casement Window Operator with Stud Bracket replacement part. The patented dual arm action offers almost effortless operation. FEATURES  Casement window operator components include: high pressure diecast zinc operator base; steel arms and stud bracket; hardened steel worm drive and gears; all raw metal parts are protected with the corrosive resistant E-Gard coating process; pate. RIGHT HAND  This casement window operator is for right hand windows only. EASY INSTALLATION  Installation is quick and easy, and all fasteners are included! DURABLE  Made of zinc diecast with a steel arm and corrosive resistant finish, this window replacement part resists rust and corrosion and is made to last.