Cole-Parmer Two-Hole Black Rubber Stoppers, Standard Size 10; 8/Pk

These two-hole black stoppers made with solid natural rubber stay pliable over a long period of time. Provide good tightness and adhesion, withstand laboratory conditions without hardening, and are ideal for use with nonaggressive or low concentration solutions. Each stopper has its size marked in raised figures. Low sulfur content. Withstand temperatures from –13 to 158°F (–25 to 70°C). SpecificationsDiameter O D (mm): 50 Material: Rubber Height (mm): 25 Bottom Outside Diameter O D (mm): 42 Color: Black Standard Size Number: 10 Description: Two-Hole Black Rubber Stoppers, Standard Size 10 8/Pk

• Product Type: Stopper