The Graham Field 3414 (Grafco/Labtron) is a precision cleaning instrument designed for small-bore laboratory glassware and clinical instruments. This 6-inch brush is uniquely equipped with a 0.5-inch sponge end, which allows for superior absorption and thorough scrubbing of the very bottom of tubes where bristles alone might miss. The white nylon bristles provide effective mechanical cleaning, while the twisted galvanized wire handle offers the flexibility needed to navigate narrow openings. It is the ideal solution for cleaning Sahli tubes, culture tubes, and other delicate small-diameter glassware.
