Designed for professional woodcutters, the 72LPX72CQ Echo 20" replacement saw chain is a .050" pitch PowerCut chain that offers top performance. Equipped with low-vibration full chisel cutters, this chain cuts quickly and accurately, making it perfect for use with 20H0PS3872C ECHO chainsaw guide bar and compatible with Echo CS 7310, CS-7310P, and CS-7310PW (72 drive links). Manufactured by Oregon - supplier for OEM Echo chains Available in stock for buy it now with free shipping. Specs. 3/8 pitch .050 gauge or (1.3 mm) 72 drive links 72LPX72CQ in Echo box superseded to Oregon's PowerCut saw chain in a red box. Sharpens at a 25-degree angle with a 7/32" file (part# _70502_) Maintain depth gauge at .025 clearance If you have a 72, A1, 76 ( 46, 47, 51 or 80 in Husqvarna) stamped on your current Oregon drive link and there are 72 drive links counted or bar stamped 3/8 050 72DL, then this chain will fit your saw. Product Type Saw Chain Prop 65 Description WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov WARNING This professional saw chain may be capable of kickback that could result in serious injury to the chainsaw operator or bystanders. Do not use this saw chain unless you have experience and specialized training for dealing with kickbacks. A saw chain with reduced kickback potential may be available.