"Living" window latch

I am trying to find replacement latches. They are stamped "Living" which was purchased by Alenco. They are a strange size (the throw) and I can't find them locally. The house is about 15/16 years old and these are for double hung windows. The distance between the screw holes is about 2 1/4", and the slide sticks out about 1/4" under the slot in the upper window. The maximum thickness of the sliding part is about 1/8" and tapers down to about 1/16"