What do you call and do you have the mechanism that attaches to the underside of Pella casement window (sash?) that has on one end the piece that fits into the slider channel in the sill, the piece that screws into the underside of the window and a finally a metal bar that attaches to the sill with a screw? The 3 part unit has a rotation pin at each end to connect the three pieces making up the unit.
This unit guides the bottom of the window during opening and closing.
Casement window operator

Handy Person from Newton, Ma.
Sep 9, 2011 8:30 am
4 Replies

Dave Sr. from SWISCO
Sep 10, 2011 9:29 am


I'm not quite sure exactly what you're looking for.
Take a few photos of the mechanism you're referring to and upload them so we can take a look.
Take a few photos of the mechanism you're referring to and upload them so we can take a look.

Handy Person from Newton, Ma
Sep 20, 2011 3:52 pm
Here is the photo of the window.

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