Door lock for lanai sliding glass door

A home owner from Delray Beach, FL says:
July 19, 2021

The letter "H" is imprinted on the part. I am missing this part for one of the sliding doors. The manufacturer is Acorn dorwal.

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Bob from SWISCO responded:
July 22, 2021

This looks like the 89-007 Door Keeper. Please compare and see if you agree.
Patio Door Keeper, 1/2" Wide
Patio Door Keeper, 1/2" Wide
89-007
$3.20
How to maintain a sliding glass door
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