Marvin Case Master French Casement Window Operators

Marvin French Case-Master Casement Window Roto-Gear Casement Operators. Marvin Window Parts for - WOOD AND CLAD FRENCH CASE-MASTER, Single Arm Roto−Gear Operators, CN 40 to under CN 48 Widths. For sash with daylight opening width of 14 1/2" to under 18 1/2" Single arm roto gear unit, LH # 10814810 or RH # 10814811, Sash Tracks, and Folding handles also available. Handles and Covers NOT INCLUDED. This unique face-mounted operator provides smooth, continuous control of casement and single vent awning windows ( the dyad ) or " two-linked" design, provides smooth operation of Marvin windows with both types of concealed casement hinges  The detachable clip linkage allows this operator to be disengaged from the sash for easy assembly and installation. Three-point mounting feature provides increased stability of operator on the window.