Check the listing for details. A021003942 GENUINE Echo Carburetor FOR PB-770 Backpack Blower A021001870. Condition: New. Listed at 74.99 USD. For Sale Today... Echo A021001870 Carburetor Same as A021003940 A021003941 A021003942 For... PB770 Backpack Blower We are a certified ECHO dealership!! Our main priority is to get you a genuine echo part with fast shipping and good communication. We value our feedback. It is how we represent ourselves on Ebay. If you wish to return the item you purchased, you will be responsible for the shipping cost to send it back tous. When we receive the returned product, we will credit your account the full purchase price less the actual shipping cost. If you'd like to exchange an item that you purchased, you will be responsible for the cost difference and the shipping cost for the new product.Thank you! Check out my other items!