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Closures for test tubes and flasks


Plastic/foam plugs provide a snug fit, yet permit air flow; springs back to original shape after repeated use; autoclavable and chemically resistant.

Cotton cheesecloth.

100% pure cotton, very absorbent and low linting; 28×24 thread count.

Bleached cotton balls.

Available large or medium.



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Description Pk VWR Catalog Number Quantity
Identi-plug foam plugs, Ø 6 - 13 mm 1.000 JAECL800-A
Identi-plug foam plugs, Ø 14 - 20 mm 1.000 JAECL800-B
Identi-plug foam plugs, Ø 27 - 34 mm 200 734-1263
Identi-plug foam plugs, Ø 35 - 45 mm 100 JAECL800-D
Identi-plug foam plugs, Ø 66 - 75 mm 40 JAECL800-G
Identi-plug foam plugs, Ø 21 - 26 mm 400 734-1262
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