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.

SKU	Product	Key Technical Details
Graham Field-3414	Small Bore Test Tube Brush (Pack of 12)	0.5" Diameter; 8" Overall Length; Nylon Bristles; Radial Tip.