Plastic latches for old storm door

A handy person from Lawton, OK says:
November 13, 2022
have some old storm windows with plastic parts that are brittle. Don't have any numbers to identify products. But need help finding it.
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Dave Sr. from SWISCO responded:
November 18, 2022

I recommend taking a look at the 91-003 and 91-054. Compare our specifications with your old hardware to see if they match up. 
Spring with Nylon Retainer
Spring with Nylon Retainer
91-003
$0.80
Nylon Slide Bolt Pair
Nylon Slide Bolt Pair
91-054
$3.01
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