This lock mechanism fits in the vertical edge of the main active door panel
Andersen 2780 Frenchwood Hinged Prairie Grille 7/8" White Exterior Oak InteriorThis grille fits a door with a visible glass size of 18-7/8" wide by 79-1/2" high
Andersen 30210 Narroline Double Hung Lower Sash Sandtone Exterior with Natural Interior Works with Andersen Narroline Double Hung 1968 to 2012
Andersen E-Z Tandem Sash Lock (Right Hand) for Mid-Size Units Works with Perma-Shield Improved/E-Z Casement Windows manufactured from 1999 to Present
Looking at the window from the outside of your home the operating sash would be on the right
Andersen Albany Style (Single Active) Interior Hardware Set in Stone - Left Hand - Half Kit Product Type_Weatherstrip This lock mechanism fits inAndersen Albany Style (Single Active) Interior Hardware in Stone This is a half kit for the interior of the door. Works with 400 Series Frenchwood Hinged (In Swing and Out Swing) Patio Doors manufactured from 1988 to Present. Hardware set is for a (single active) hinged door in which only one door will open. Works on a left hand hand door. Set includes inside handles, inside escutcheon plates, limiting plates, gaskets, lock actuator, dummy cylinder,