SWISCO - The Replacement Hardware Authority

Patio door handle

A handy person from USA says:
I am looking for an outside key lock for an Interstate Sliding Patio Door Model 4202.

I have been told that PN 82-309 would be the correct key lock for Model 4202 door.

But I am not quite sure.
User submitted photos of patio door hardware.
Profile picture of Paul
Paul from SWISCO responded:
Yes, that looks like the appropriate key housing and cylinder for your handle. Just keep in mind that this is a little tricky to install. You might want a local locksmith to help you out.
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