Stopper Rubber - Two hole, Pack of 50

Details

Pack of 50 assorted orange rubber stoppers, each with two 5mm diameter holes. This pack contains the following quantities and sizes (bottom diameters): 10 stoppers each of four different sizes - 13mm, 15mm, 17mm, and 18mm; 3 stoppers each of two different sizes - 21mm and 23mm diameters; and 2 stoppers each of two different sizes - 25mm and 29mm diameters. The durable rubber construction is suitable for use with chemicals, being resistant to acids, alkalis, and ammonia. Easy to clean, these stoppers are dishwasher safe. They remain stable at temperatures between -20°C and 70°C. Designed for use in professional laboratories, they are perfect for a variety of applications in the home and garage.