Dave Sr. from SWISCO responded:
April 4, 2016
Thanks for contacting us. I'm afraid your exact finger latch has been discontinued, but we have some possible substitutes. First, consider our 91-160 latches. You might have to file off the bump on the ends if they interfere with the locking in the master frame, but they may work well. The spring is sold separately, see our 91-102. As for installation, I pulled up a couple videos that may help you.
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