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A professional from Reno, NV says:
These are installed in doors in a small hotel in Costa Rica. I need replacements.
User submitted a photo of patio door hardware.
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Dave Sr. from SWISCO responded:
Hello! Please see our 40-194 and let me know if this matches up to your existing mortise lock.
How to flip a storm door mortise latch.
How to flip a storm door mortise latch.
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