Echo 20 inch CS 590 AdvanceCut chainsaw chain: Full chisel,for 20" guide bar, 70 drive links, pitch: 3/8", gauge: .050". Same 20-inch chainsaw chain's parameters maybe different, Please double-check your chain drive links, pitch and gauge prior to making your purchase. CS590 20 inch chainsaw chain fits Poulan/Poulan Pro PP5020AV, PR5020203, 4000, 4200, 4400, 445, 446, 450, 4900, 5200, 5400, 5500, 6700, 6900, 7700, 8500 Oregon E70 20 inch chainsaw chain Fits Echo CS-590,CS-1001, CS-451, CS-452, CS-500, CS-500EVL, CS-501EVL, CS-510EVL, CS-550, CS-550EVL, CS-600, CS-600P, CS-601, CS-602, CS-60S, CS-620P, CS-620PW, CS-650, CS-650EVL, CS-660, CS-670, CS-6700, CS-680, CS-701, CS-702, CS-706, CS-750, CS-750EVL, CS-8000, CS-800P, CS-900, CST-610. 20 Inch CS590 chainsaw chain replace OEM Part Numbers: Oregon E70, 72LPX070G, 72V070G, 72EXL070G, B70, D70T, D70, 72EXL070E, 72LPX070E, M72LPX070G, 72EXJ070G, 72RD070G, 72DPX070G. Blued Cutters deliver high-quality protection against corrosion. Echo CS590 20 Inch Chainsaw Chain: for yard work and occasional commercial users. ECHO, Homelite, Makita, McCulloch, Poulan, Sears/Craftsman, Remington, Dolmar Chainsaw. Hipa E70 Chainsaw Chain