Solid, #13 Rubber Stopper, 1lb, Each

Details:

These black stoppers are made of solid natural rubber that remains pliable over an extended period. They are ideal for use with non-aggressive or concentrated solutions, featuring low sulfur content. The stoppers withstand temperatures ranging from -25 to 70°C (-13 to 158°F). Available in solid, one-hole, and two-hole versions, each stopper has its size marked in raised figures. All stoppers stand at a height of 25 mm. They are sold in one-pound bags.