Marvin Case-Master Egress Style, Dual Arm Roto−Gear Operator as Outlined Below. 

CN 48* through CN 56 width for sash with daylight opening width of 18 1/2 (470) through 22 1/2" 

WHITE (or Bronze) Finish  - Folding Handle and Cover Upgrade, Nesting Handle and Cover, for the EntryGard Operators - Please specify in comment section at checkout. If not specified, we will send WHITE.

For help with obsolete Marvin Case-Master Parts for Casement, Awning French Casements, Dual Arm Roto-Gear Operators, Sash Tracks, Brackets, Coastal Stainless Steel Hardware Folding Handles and Covers, Lock Handles, Sequential locks, Handles and Covers, Sash Lifts, Locks, Keepers, Egress hardware, Dyad hardware and so much more!