Need replacement key cylinder for Legance 3 door

A home owner from USA says:
I have a Legance 3 Patio Door (Type DDSG; Code TRI - K - 36) and I'm looking for a replacement cylinder lock. Do you have the appropriate cylinder locks? Thanks.
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Dave Sr. from SWISCO responded:
I'm not sure exactly what you have, but see our 82-310 key cylinder. This is used in Legacy type handle sets like our 82-034. Could this work for you, as well? If not, please show me some pictures of your existing handle set to start and we can work from there.
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