This is a pretty common part. Most small engine repair shops should have it or you can order it online. It is possible that its even at Home Depot in the lawn and garden shop and comes with fuel lines as well. They have many different parts for Trimmers there. To identify the part you need it will be good to know if this is a "knockoff" carb or a name brand carb (like Zama or Walbro). The best thing to do is to remove it and take it with you for comparison. They also sell these on Ebay.
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This is a pretty common part. Most small engine repair shops should have it or you can order it online. It is possible that its even at Home Depot in the lawn and garden shop and comes with fuel lines as well. They have many different parts for Trimmers there. To identify the part you need it will be good to know if this is a "knockoff" carb or a name brand carb (like Zama or Walbro). The best thing to do is to remove it and take it with you for comparison. They also sell these on Ebay.