This Sparta Heavy Duty Pipe Brush has a diameter of 1.5 in. and is 36 in. long. It is perfect for cleaning the inside of pipes and tubing. Recommended for commercial kitchen and manufacturing applications. Perfect for any application requiring a brush of this length and diameter.. Handy hanging loop at the end of the twisted wire handle. Base resins used to produce the bristles are made of FDA-approved materials. Heavy-duty 3 ft. brush for cleaning the inside of tubes and pipe. Medium stiff polyester bristles are twisted in heavy-duty, 8-gauge galvanized wire with the brush length being 5 in. along the handle