Which lock insert/ cylinder do indeed?

A home owner from Howell says:
82-086 Legacy Keyed handle set 3-15/16" (1-1/8"to 2-1/2") white
I need the inside lock/cylinder. Which one do I need for this handle?
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Tom from SWISCO responded:

It's tough to tell what your old mortise lock was without seeing the original, but the cutout looks like it could accommodate something like our 82-226. Carefully review our dimensions for this product to ensure that it will fit in the space available.

As for the keeper, you could have anything there. The 82-226 is compatible with many different kinds. Do you have the original on hand for us to see?

Finally, for the key cylinder, see our 82-310.

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