Rubber Stoppers - Size 2 Solid
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Top Diameter: 20 mm
Bottom Diameter: 16 mm
Length: 25 mm
Approximate Number Per lb.: 45
Developed for demanding laboratory work. Soft, pliable, resilient, low in free sulfur, resistant to chemical attack. Made of black or blue rubber. Size numbers are molded into the top.
NOTE: Bottom of stopper diameter must be smaller than test tube diameter.