Heavy-Duty Chimney Cleaning Rod, 6', Yellow, 3/8" NPT
Third (bottom) is a light-duty, more flexible, brown .370" diameter fiberglass rod. This rod is very popular because of its high degree of flexibility, though it won’t stand prolonged, heavy-duty use. These .370 rods feature 1/4" pipe threads. To attach chimney cleaning brushes you’ll need a 1/4" female to 3/8" Female adaptor.