The dawn of a new era in sport fishing sonar is at hand with the FL-20 from Vexilar. Packed with features and enhanced sonar performance, the FL-20 promises to deliver live action, three-color sonar that will change the face of fishing. The FL-20 has a sleek profile with a bigger display, and two auto zoom ranges that split the display screen to let you focus in on just the bottom 6 or 12 feet of the water column.