The Graham Field 3413 (Grafco/Labtron) is a specialized medical cleaning instrument designed for the maintenance of enteral feeding tubes and specialized clinical tubing. This brush features a 14-inch total length, providing the reach necessary to clean the interior of long-bore tubes effectively. The white nylon bristles are soft enough to prevent damage to delicate tube linings while remaining firm enough to remove nutritional buildup and residue. Mounted on a sturdy, twisted galvanized wire handle, this brush is an essential tool for hospitals, home care settings, and long-term care facilities to ensure patient hygiene and prevent tube blockages.