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RubberMill supplies lab stoppers to North American distributors and large volume customers in the Laboratory, Medical, Scholastic, OEM, Paint - Finishing, Industrial and Recreational Products markets.
Our stock standard grade stoppers are manufactured from a premium grade SBR black rubber compound with a 1.342 specific gravity (they do not float in water). They have a temperature usage range of -40C to 70C. The 40 (+/-5) Durometer material is soft, pliable and long lasting. Solid, one-hole, and two-hole in sizes from #000 to #15 are available. Contact us for pricing on large volumes of custom compounds or colors.

Please click on an item number below to view detailed pricing information
Lab Stoppers Dimensional Drawing
Items Lab Stoppers Dimensional Drawing
CLS-02-1H-10B40
#2 Size 1-Hole Lab Stopper
Lab Stoppers Dimensional Drawing
CLS-02-2H-10B40
#2 Size 2-Hole Lab Stopper
Lab Stoppers Dimensional Drawing
CLS-02-S-10B40
#2 Size Solid Lab Stopper
Brands N/A Rubbermill
Style N/A 1-Hole N/A 2-Hole N/A Solid
Stopper Size N/A #2
Minimum Order N/A 500
Top Diameter N/A 20 mm
Bottom Diameter N/A 16 mm
Length N/A 25 mm
Hole Diameter N/A 5 mm N/A 5 mm N/A
Amount Available for Immediate Shipment N/A {0} N/A {0} N/A {0}
Specific Gravity N/A 1.342