Echo SRM-3001 with carburetor issues

[Rokon]

The carb on this trimmer has an air leak. I'm thinking it needs a new carburetor. When I look up the part number I get a 12300041030, or a WY-21. I can't find this carb anywhere. Has anyone used an available carb for this application?

 

[mechanic mark]

Echo String Trimmer Carburetor Repair Kit 12310040930 Order now for same day shipping. 365 day return policy. RepairClinic.com

https://www1.gardnerinc.com/echo/