spare chain came in a factory Husqvarna box, one side is stamped 18 other side is stamped husky, and yes saw has 3/8 pitch and .058 or 1.5mm, 20 inch bar.
My saw is a 20 inch and the number on the drive link is 18, what I can not find is any husky site or dealer that can tell me anything about this chain. The saw came with a #48 installed and this chain cuts like s--t compared to the #18, just want to make sure this chain is safe to run on my saw