Echo 20" Oregon Chain Saw Repl. Chain Model #Cs-600p, Cs-650, Cs-660, Cs-670, Cs-680, Cs-701, Cs-702, Cs-750, Cs-6700, Cs-8000 (7270)fits Saws Listed That Use a 3/8" Pitch , .050 Gauge Chain with 70 Drive Links Sold on Amazon