Trioving lock for Evans door

Hello, need new Trioving lock cylinder for Evans door, can you help? The lock cylinder has not been used for a long time & we can't find the key so we want to replace it.

Take a look at following item, it come with 2 keys and is SC finish. Other finishes are available but this is the most popular.

http://www.trioving-stockist.com/trioving-5520-cylinder-satin-chrome-finish/