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.
VWR®, Drain Stoppers for VWB2 Water Baths
Supplier: VWR Collection
Drain stoppers, VWR®
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VWR®, Stoppers, PE
Supplier: VWR Collection
Stopper for test tubes Ø 12 to 16 mm, polyethylene, with tongues.
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VWR®, Stoppers for Chlorobutyl Serum and Lyophilisation
Supplier: VWR BRAND PRIVATE LABEL USA
These stoppers have a fluorocarbon film on the top and bottom. In addition, the enhanced lyophilisation stoppers are coated with a cross-linkable polydimethylsiloxane on the underside of the flange.
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VWR®, Stoppers for Standard Ground Joints
Supplier: VWR Collection
Greaseless closure, which prevents ground joints from seizing. With inclined, circumferential sealing lips for better sealing and reduced risk of breakage. Easily detachable. With ergonomically shaped grip.
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Stopper, HDPE, KIMBLE®
Supplier: KIMBLEKONTES
HDPE, linear, ideal for flasks that are grounded to [ST] stopper dimensions.
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Stoppers, press down, VacuCap®
Supplier: SIMPORT SCIENTIFIC
Ideal closures for glass and plastic reagent, sample and culture tubes, LDPE.
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Stoppers, standard, LaboPlast®
Supplier: BÜRKLE
Laboratory standard bung made of PVC.
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Push-in stoppers for tubes
Supplier: SIMPORT SCIENTIFIC
HDPE. Fit tubes of 15 ml capacity and 17 mm Ø.
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Stoppers for conical ground Joints, PE
Supplier: LENZ LABORGLAS
PE, white with red cover plate and octagonal head.
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Stoppers for standard ground joints, PE
Supplier: HIRSCHMANN
Stopper for Standard Ground Joints, PE, NS: 45/40
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Stoppers, flat type, PTFE
Supplier: COWIE
PTFE. Stopper with flat head fit standard ground glass joints.
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Stoppers for standard ground joints
Supplier: BURKLE
Stopper made of PE, hollow with sealing rings and octagonal top.
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Press-down stoppers
Supplier: KARTELL
For sealing glass or plastic reagent and sample tubes.
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Stoppers
Supplier: KARTELL
Tapered stoppers, PTFE, plastilab®, NS: 14/23, Ø bottom: 12,2 mm
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Finned plugs for tubes
Supplier: KARTELL
Finned plugs for disposable tubes 11 to 13 mm or 15 to 17 mm in diameter. The finned plug has been carefully designed. Available colours: Neutral (00), blue (04), red (10), green (12) and yellow (06).
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Stoppers with a conical ground joint
Supplier: KARTELL
PP, transparent, with 2 hose attachments, 8 mm Ø. Ideal for ventilating or transferring air, gases or liquids in a container with a normal ground joint sleeve.
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Stoppers, flange plug caps
Supplier: SIMPORT SCIENTIFIC
PE Plug type push-in caps and 2-position snap caps are made of polyethylene for test tubes with outside diameters of 12 or 17 mm. Dual position caps offer two possibilities: the closed but unsealed position where samples are maintained aerobic for microbiological procedures; and the fully sealed position where the cap is pushed tight to seal the tube for anaerobic use or for storage, transfer and centrifuge applications.
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Stoppers, universal caps, FitsAll™
Supplier: SIMPORT SCIENTIFIC
Designed for easy-on, easy-off use. Cap removal is simple and quick. FitsAll™ closure is ideal for recapping most 12 and 16 mm O.D. evacuated glass blood collection tubes. Flexible FitsAll™ closures protect from aerosols of highly infectious microorganisms. They guard samples against cross-contamination and laboratory work areas against infection and spillage. Precision molded from low-density polyethylene, FitsAll™ fits firmly on the tube. Not suitable for autoclaving.
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PE stoppers for ground joint flasks or bottles, DURAN®
Supplier: DWK LIFE SCIENCES
Octagonal PE stoppers.
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Stoppers for standard ground joints
Supplier: BRAND
PP or PE-LD, hollow, with sealing ribs and square or octagonal grip.
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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.
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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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Stoppers, Standard Taper, HDPE, PYREX®
Supplier: CORNING SCIENCE PRODUCTS
These PYREX® No.13 stoppers are made from linear HDPE and have closed bottoms to conform to Standard Taper stopper dimensions.