Help Identifying Hardware

Hello,

You could have one of the Encore operator pairs shown in our video below. The determining factor would be the fitting used to attach the straight arm to the sash track. 

I'd also recommend checking the hinges for any damage or if they may need to be adjusted. We offer the 36-048 set with a 10" base, and the video below, which shows how they are installed and adjusted. Thanks for posting!