![Amazon.com: 20LPX078G 2 Pack 20" Oregon Chain fits Echo CS-490 CS-4910 CS-500P CS-530 CS-450 CS-450P, CS-550P : Patio, Lawn & Garden Amazon.com: 20LPX078G 2 Pack 20" Oregon Chain fits Echo CS-490 CS-4910 CS-500P CS-530 CS-450 CS-450P, CS-550P : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/41FbCPgnIIL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 20LPX078G 2 Pack 20" Oregon Chain fits Echo CS-490 CS-4910 CS-500P CS-530 CS-450 CS-450P, CS-550P : Patio, Lawn & Garden
![Amazon.com: UpStart Components 2 Pack Replacement 20-Inch H78 20BPX Chainsaw Chain for Echo CS-490 Chainsaw (20" Length.325" Pitch, 0.050" Gauge, 78 Drive Links) : Patio, Lawn & Garden Amazon.com: UpStart Components 2 Pack Replacement 20-Inch H78 20BPX Chainsaw Chain for Echo CS-490 Chainsaw (20" Length.325" Pitch, 0.050" Gauge, 78 Drive Links) : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61nA0HMPkrL._AC_UF894,1000_QL80_.jpg)
Amazon.com: UpStart Components 2 Pack Replacement 20-Inch H78 20BPX Chainsaw Chain for Echo CS-490 Chainsaw (20" Length.325" Pitch, 0.050" Gauge, 78 Drive Links) : Patio, Lawn & Garden
![Amazon.com: UpStart Components 2 Pack Replacement 20-Inch H78 20BPX Chainsaw Chain for Echo CS-490 Chainsaw (20" Length.325" Pitch, 0.050" Gauge, 78 Drive Links) : Patio, Lawn & Garden Amazon.com: UpStart Components 2 Pack Replacement 20-Inch H78 20BPX Chainsaw Chain for Echo CS-490 Chainsaw (20" Length.325" Pitch, 0.050" Gauge, 78 Drive Links) : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61uuHecrvRL._AC_UF894,1000_QL80_.jpg)