Operators Roto Gear Units

Marvin Casemaster, Awning, French Casemaster, Venting Window / RIGHT HANDING Unit - RH -10815501 Mechanism. Also known as the Marvin Casement Window Dual Arm Roto-Gear Operator | STR OT-P83 LH / OT-P84 RH Dual Arm Roto−gear Operator, CN 20 and over; Daylight opening width 14 1/2 (368) and over; May also be number stamped as a P233 P234 unit in some applications. 

Marvin Window Operators - Send Pics In Email: Info@windowpartsdoorparts.com  for best help and ID.

Encore & Maxim Selections, Dual Arm Operators For large casement / awning windows, up to 40" x 84" frame sizes and 96 lb. sash weights, egress applications allowed.

Jalousie Window Operator

Replaces most Jalousie or Louvre operators on the market. Complete with universal break off link. Aluminum baked enamel finish, non-handed.

Truth Maxim Dyad Operator

Designed for narrow windows but will operate a frame width from 16" to 32" and up to 72" highwith a sash weight of 55 pounds.

• Fits in all profiles currently using the EntryGard or Encore Dyad Operators.
• Provides ample washing ability.
• Used with #BB-PF.97 hinge.