VEVOR Chimney Brush Set, 10 m (33 ft)
10 m (33 ft) nylon rod, aluminum-alloy rectangular brush head, swivel connector, spring-button lock, bends 90°
A rectangular brush head on ten meters of nylon rod, with a swivel connector and a spring-button lock.
Best for: A square or rectangular masonry flue, where a round brush touches four corners and nothing else
≈ $47