Goodway® Spin Grit Brush w/ Quick Connect For 11/16" - 3/4" ID Tubes, Pack of 15

Dual Diameter Spin-Grit Brushes are recommended for removing soft and light scale deposits from straight, ferrous, and nonferrous internally enhanced tubes. The large diameter end of the brush cleans into the grooves, while the small diameter end cleans the lands of a tube's rifling. Features: High quality dual diameter spin-grit brush Specially designed for enhanced/spiraled tubes Durable and long lasting Available for tubes 1/2"-1-1/4" (12-11/16-32mm) I.D.

Silicon Carbide Impregnated Nylon brush for cleaning medium deposits in 11/16"-3/4" id tubes.

Nylon tube cleaning brushe for cleaning 11/16" diameter non-ferrous heat exchanger tubes

Blue Nylon Brushes are recommended for removing soft deposits such as mud and algae from both straight ferrous and nonferrous tubes. Tube-cleaning nylon brushes are made from the highest quality components with strict engineering tolerances designed to deliver the desired results. Features: High-quality nylon brush technology Exclusive X-Filament technology improves surface cleaning Durable and long-lasting Brush should be equal to or 1/16" (1-5/8mm) smaller than tube I.D. Note: Quick Connect fitting in 7/16" (11-1/8mm) to 1"(25-3/8mm) only