Marvin Old Style Casement / Casemaster Roto-Gear Operator RH 10815501
Marvin Casemaster, Awning, French Casemaster, Venting Window - RIGHT HANDED / RH -10815501 Casement Window Crank Mechanism. Also known as the Marvin Casement Window Dual Arm Roto-Gear Operator - "B" Dimension is 4 7/16" Long. NOTE: If you need a Left Handed Unit Specify In COMMENT SECTION at Checkout.
IF YOU HAVE THE "SHORTER LENGTH ARM ( 2 7/8" ) see this link:
THIS REPLACES THE OLD STYLE UNITS THAT INSTALL UNDER / THROUGH THE BOTTOM SILL STOP. Special Order Units - as shown in pictures. Handles and covera are sold seperately..
If You Are Uncertain .. or Need Other Parts Email: Info@MarvinWindowDoorParts.com