Larson Screen door lock set replacement

A quick learner from NY says:
Looking for a replacement lockset for my storm door. Latch broke on the old one and I had to cut it out to get the door to open. Hoping you have this as you were most helpful recently on a replacement window part.
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Tom from SWISCO responded:

Thanks for reaching out to us. This mortise is similar to our 40-198, but I'm not sure about the backset. Look at the diagram below and let me know if yours is the same.

Side view of 40-198
Side view of 40-198
How to flip a storm door mortise latch.
How to flip a storm door mortise latch.
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