VWR® One-Hole Kjeldahl Rubber Stoppers, Black

About this item

These black rubber, one-hole stoppers are specifically designed to fit 500 and 800 mL Kjeldahl nitrogen determination flasks.

Excellent resiliency
Very pliable stoppers
Stoppers come with an 8mm-diameter hole

Stoppers have low free-sulfur content (¹/₂%), lower density than neoprene, and excellent resiliency and pliability. Both sizes come with an 8mm diameter hole.

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