Oregon Part Number 21LPX072E. Fits 18" Husqvarna Chainsaw Models 455 Rancher & 445e using a 0.325" pitch, 1.5mm (0.058"), 72 drive link chain. SUPER 20 FULL CHISEL chain. 325" pitch 21LPX The high performance chain for professional users who use. 325" pitch chainsaws.
