Parts needed for my window

From looking at your photos I believe you have our 26-014 lower sash slide latch. You may also need our parts 26-001 finger lever, 26-016 spring, and 26-017 spring retainer. Compare your parts to our product pictures to make sure they match. If you do not believe they match or if you want to double check, feel free to submit more detailed photos of your existing hardware.