Laboratory and Scientific Brushes, Perfex - 3642, Burette Brushes, Fan Tips, for 50 ml. Burette Brush. For 50mL burettes and other narrow tubes like chromatography columns. Brush dimensions: 1.9dia.x8.3Lcm. Total length: 76cm.
Laboratory and Scientific Brushes, Perfex - 3600, Test Tube Brushes, Fan Tips, Micro. Micro-Tube Test Tube Brush. Stiff, white polyester fibers twisted in stainless steel wire. Radial tufted ends. Looped handles. Length: 7.6cm. Tapers from 0.64cm to