Double hung window part

A handy person from Maine says:
March 30, 2024
I don't know what this is called but it allows the bottom sash of a double hung window to be open a couple of inches but keeps it from being opened any further. Lease see attached pic.
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Bob from SWISCO responded:
March 31, 2024

Thanks for posting. This is called a vent latch. Start by looking at our 26-148. This looks similar, but compare to the dimensions below and let me know if you think this matches well with your old one or not.

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Alternate image for 26-148
Alternate image for 26-148
Alternate image for 26-148
Alternate view of 26-148
Alternate view of 26-148
Vent Latch
Vent Latch
26-148
$2.12
How to Replace a Window Vent Latch
How to Replace a Window Vent Latch
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