Buy Greenlee 39276, 2-1/2" Wire Duct Brush - Mega Depot
LintEater Dryer Vent Cleaning Kit (White) in the Dryer Parts department at Lowes.com
Amazon.com: 21Pcs 24 Feet Dryer Vent/Duct Brush Cleaning Kit Chimney Cleaning Kit Lint Remover Working with or Without Drill Includes 2 Nylon Brush Heads, 18 Rods and 1 Tape : Home & Kitchen
Rutland Duct Cleaning Brushes – US Fireplace Store