Product Code: CHINALSCHOOLS8850004
Categories: School Chemistry Lab Cork and Tubing
Rubber Stopper Two Holes Suppliers in China
Top Diameter: 17 mm.
Bottom Diameter: 13 mm.
Soft, pliable, resilient, low in free sulfur, resistant to chemical attack.
Made of black or blue rubber.
Size numbers are molded into the top.
All stoppers are 25 mm long.
Accepts 4 mm tubing.
Developed for demanding laboratory work.
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