ECHO's 20 in. replacement chain (72LPX70CQ) is designed with professional loggers and forest workers in mind. Power and precision are the name of the game with this chain. The low-vibration full chisel cutters deliver ultimate performance, while the offset depth gauges prevent cutters from driving into the sidewall, which in turn provides a smoother cut. The enhanced cutter coating provides superior protection against corrosion resistance. By replacing your chain with a genuine ECHO replacement chainsaw chain that's been manufactured to deliver maxium performance and reliability you help to extend the life of your chainsaw bar and keep your equipment running at peak performance. This chain fits ECHO bar: 20D0PS3870C and 20D0AS3780C.