Carburetor For Echo Replace Zama RB-K70A RB-K66A RB-K66B XtremeAmazing Provides 100% brand new and high quality products! We are USA sellers, packages from us usually takes 3-5 business days to arrive! We promised 100% satisfied after-sale customer service, please contact us if there is any problem! Leaving negative comments won't help! Please check for details to make sure this is the exact part you need! XtremeAmazing provides 90 days warranty for all items from us!