Casemaster Operators Face Mounted Dyad Roto-Gear - Right Left Hand

This unique face-mounted roto-gear 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.

DETERMINE "handing" ..  from the inside, if the sash lock or sash lock handle is on the left, a left handed operator is needed. If the lock or lock handle is on the right, a right handed operator is needed. Please specify the handing  [ LEFT 10815400, or RIGHT 10815401 ( opposite of shown item ] or model number you wish to order. Items are special order only and non-returnable.