Low density, high density, or standard plastic stoppers gently insert into vessels to provide a vacuum tight seal. The cost efficient alternatives do not require the preparative greasing like ground glass counterparts. Solid or hollow models may feature a gripping handle or rotating nuts for easy application and extraction. Available in different diameter sizes, the PE, LDPE, and HDPE stoppers selection promises to close any apparatus to keep contents unpolluted.

Stoppers for standard ground joints

Supplier: BURKLE

Stopper made of PE, hollow with sealing rings and octagonal top.

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Stopper, flexible

Supplier: NOLATO HERTILA

PE, clear with packing. Specified diameter is the inner diameter of the tube.

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Stoppers for volumetric flasks, PP

Supplier: Poulten & Graf

Prop til volumetrisk kolbe, LDPE, med forseglingsprofil, NS: 45/40

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Stoppers, hollow, LDPE

Supplier: Hach

Ideally can be used as a small beaker, sample cup for pH meters, flame photometers and automatic analysers.

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Plugs, Versa Vial™

Supplier: Restek

Made of polyethylene.

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Stoppers, LDPE

Supplier: SEMADENI

Lamellar stoppers made from soft PE-LD.

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Stoppers, PE, winged

Supplier: LP ITALIANA

Stopper, Winged, PE, Ø bund: 11 - 13 mm, hvid

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Propper til konisk slebne samlinger, PE

Supplier: Lenz Laborglas GmbH & CO.KG

PE, hvid med rød dækplade og ottekantet hoved.

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Stoppers

Supplier: LP ITALIANA

PE stopper.

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Propper til standardslib, PE

Supplier: HIRSCHMANN

Prop til standardslib, PE, NS: 7/16

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PE stoppers, DURAN®

Supplier: DWK Life Sciences

These PE stoppers have an ergonomic grip that makes the opening and closing of the flasks easier and more secure. Coloured inserts in the different sizes of stoppers allow the easy identification of the corresponding ground (NS/TS) neck size.