Screen door striker missing

A quick learner from Massachusetts says:
Can someone please help me identity what door this is? Or a piece that would fit? The striker was broken off by previous tenants and we cannot figure out a replacement part! The glass sliding door is Pella but I cannot tell if the screen door is the one that originally came with it or not.
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Emily from SWISCO responded:

Thanks for posting. Your current handle set looks like our 83-126 . We don't have a specific keeper that goes with this handle since it depends on the door itself. Customers most commonly purchase one of three types of keepers to go with this handle: the 85-001 , 85-011 , and 85-014 . Take a look over these parts to see if they'll work on your door. Please let us know if you have any further questions! 

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