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VWR is your complete source for workplace supplies. Binders, calendars, pens, cleaning and sanitation supplies, and office equipment are just some of the essential products we offer...
New Avantor® J.T.Baker® premium conductive and non-conductive robotic tips deliver superior quality and reliable performance for results you can trust.
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With a high material purity, rubber stoppers and bungs are lightweight options to seal containers or apparatuses. Solid styles do not permit any gas exchange in order to protect ultra-sensitive contents, while holed options support unexposed processing. Retaining the characteristic softness even under testing conditions, solid rubber stoppers are often autoclavable for repeated use. The inserting closures are available in any diameter size to securely fit any desired equipment including test tubes.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 2. Diameter of top: 20mm. Diameter of bottom: 16mm. Length: 25mm.
Description:
Low in free sulfur. Size 8 with 5mm diameter hole. Diameter of top: 41mm. Diameter of bottom: 33mm. Length: 25mm. Approximately 14 stoppers per pound. 5 lbs per case.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 9. Diameter of top: 45mm. Bottom: 37mm. Length 25mm.
Description:
Twistit*. Three twist-off seals permit easy conversion from a solid to a one, two or three-hole stopper. Soft, resilient, natural, white rubber withstands repeated autoclaving. Size: 6.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 0. Diameter of top: 17mm. Bottom: 13mm. Length 25mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 13.5. Diameter of top: 75mm. Diameter of bottom: 62mm. Length: 35mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 10. Diameter of top: 50mm. Diameter of bottom: 42mm. Length: 25mm.
Description:
Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 12. Diameter of top: 64mm. Bottom: 54mm. Length: 25mm.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 3. Diameter of top: 24mm. Bottom: 18mm. Length 25mm.
Description:
Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 9. Diameter of top: 45mm. Bottom: 37mm. Length: 25mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 6.5. Diameter of top: 34mm. Diameter of bottom: 27mm. Length: 25mm.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Added hole facilitates laboratory usage. Size: 11. Diameter of top: 56mm. Bottom: 48mm. Hole diameter: 5mm.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Holes facilitate laboratory usage. Size: 10. Diameter of top: 50mm. Bottom: 42mm. Hole diameter: 5mm.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Added hole facilitates laboratory usage. Size: 8. Diameter of top: 41mm. Bottom: 33mm. Hole diameter: 5mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 4. Diameter of top: 26mm. Diameter of bottom: 20mm. Length: 25mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 3. Diameter of top: 24mm. Diameter of bottom: 18mm. Length: 25mm.
Description:
Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 0. Diameter of top: 17mm. Bottom: 13mm. Length: 25mm.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Added hole facilitates laboratory usage. Size: 4. Diameter of top: 26mm. Bottom: 20mm. Hole diameter: 5mm.
Description:
Twistit*. Three twist-off seals permit easy conversion from a solid to a one, two or three-hole stopper. Soft, resilient, natural, white rubber withstands repeated autoclaving. Size: 9.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Holes facilitate laboratory usage. Size: 6. Diameter of top: 32mm. Bottom: 26mm. Hole diameter: 5mm.
Description:
Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 2. Diameter of top: 20mm. Bottom: 16mm. Length: 25mm.
Description:
Twistit*. Two twist-off seals permit easy conversion from a solid to a one or two-hole stopper. Soft, resilient, natural, white rubber withstands repeated autoclaving. Size: 3.
Description:
VWR* Black Rubber Stoppers, Solid High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 000. Diameter of top: 13mm. Diameter of bottom: 8mm. Length: 21mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 10.5. Diameter of top: 53mm. Diameter of bottom: 45mm. Length: 25mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 13. Diameter of top: 68mm. Diameter of bottom: 58mm. Length: 25mm.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 2. Diameter of top: 20mm. Bottom: 16mm. Length 25mm.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Holes facilitate laboratory usage. Size: 12. Diameter of top: 64mm. Bottom: 54mm. Hole diameter: 5mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 15. Diameter of top: 103mm. Diameter of bottom: 83mm. Length: 39mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 11.5. Diameter of top: 63mm. Diameter of bottom: 50mm. Length: 25mm.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 14. Diameter of top: 90mm. Bottom: 75mm. Length 39mm.
Description:
Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 4. Diameter of top: 26mm. Bottom: 20mm. Length: 25mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 8. Diameter of top: 41mm. Diameter of bottom: 33mm. Length: 25mm.
Description:
High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 6. Diameter of top: 32mm. Diameter of bottom: 26mm. Length: 25mm.
Description:
(TW-ASSORT) Twistit*. Twist-off seals permit easy conversion from a solid to a one, two or three-hole stopper. Soft, resilient, white rubber withstands autoclaving. Assortment contains nine size 3 stoppers, eight 4's, six 5's, four 6's, two 7's, two 8's, one 9, and one 10.
Description:
High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Added hole facilitates laboratory usage. Size: 10. Diameter of top: 50mm. Bottom: 42mm. Hole diameter: 5mm.
Description:
Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 8. Diameter of top: 41mm. Bottom: 33mm. Length: 25mm.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 11. Diameter of top: 56mm. Bottom: 48mm. Length 25mm.
Description:
Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 13. Diameter of top: 68mm. Bottom: 58mm. Length 25mm.
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