Home » Products » Tree Care » ECHO CS-490 Not sure what you need? Come see us in store! We have locations in Kelowna and Vernon. ECHO CS-490 $0.00 Dollars SKU : CS490 Lightest saw in its class. 50.2 cc professional-grade, 2-stroke engine 16″, 18″, 20″ bar lengths *Price shown is based on a 16′ bar length. Price will vary depending on the length of the bar.