Stoppers, caps & closures

Here you will find everything your laboratory needs for stoppers, caps and closures, such as: neochrom screw caps, conical joint stopper, hollow glass hexagon and screw cap. This range is for biotech, hospitals, R&D, teaching and (quality) control. This collection holds 3.872 articles. The catalogue holds more than 150.000 articles. In-stock articles ship in two to five business days.

3872 products

Showing 1 - 24 of 3872 products

Showing 1 - 24 of 3872 products
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Stopper no. 18, silicone for VF11, Witeg, art. 0082916711018Witeg
Witeg Stopper Nr. 18, silicone for VF11
€13,20
Hollow glass stopper NS 45/40, clear glass, Hirschmann, art. 8900393Hirschmann
Hirschmann GLASS STOPPER NS 45/40
€12,91
Rubber stopper for jars 17 mm Ø, Hecht, art. 40955010Hecht
Hecht Rubber stopper for glasses 17 mm Ø
€0,46
Cap for SnapTwist™ reaction vials, HDPE, white, art. YK23.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, white, 1000 unit(s)
From €72,09
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Cap for SnapTwist™ reaction vials, HDPE, yellow, art. YK22.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, yellow, 1000 unit(s)
From €72,09
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Cap for SnapTwist™ reaction vials, HDPE, red, art. YK21.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, red, 1000 unit(s)
From €72,09
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Cap for SnapTwist™ reaction vials, HDPE, green, art. YK19.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, green, 1000 unit(s)
From €72,09
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Cap for SnapTwist™ reaction vials, HDPE, blue, art. YK18.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, blue, 1000 unit(s)
From €72,09
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Cap for SnapTwist™ reaction vials, HDPE, violet, art. YK20.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, violet, 1000 unit(s)
From €72,09
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Cap for SnapTwist™ reaction vials, HDPE, transparent, art. YK17.1Carl Roth
Carl Roth Cap for SnapTwist(TM)-reaction vials, HDPE, transparent, 1000 unit(s)
From €72,09
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Sealed screw closure with dropper, DIN-18, black, 1000 pieces, Labbox, art. TP180021K0Labbox
Labbox Dropper screw cap DIN-18 with security seal, black, 1000 pcs
€153,09
Sealed screw closure with dropper, DIN-18, white, 1000 pieces, Labbox, art. TP180011K0Labbox
Labbox Dropper screw cap DIN-18 with security seal, white, 1000 pcs
€153,09
Sealed screw closure with dropper, DIN-18, black, 20 pieces, Labbox, art. TP18002020Labbox
Labbox Dropper screw cap DIN-18 with security seal, black, 20 pcs
€3,89
Sealed dropper closure DIN-18, white, 20 pieces, Labbox, art. TP18001020Labbox
Labbox Dropper screw cap DIN-18 with security seal, white, 20 pcs
€4,01
Caps for reaction vials, transparent, 1000 pieces, art. AEX6.1Carl Roth
Carl Roth Caps for reaction vials, transparent, 1000 unit(s)
From €110,34
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Caps for reaction vials, assorted colours, 1000 pieces, art. AEX7.1Carl Roth
Carl Roth Caps for reaction vials, assorted colours, 1000 unit(s)
From €110,21
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Caps for reaction vials, green, 1000 pieces, art. AEX3.1Carl Roth
Carl Roth Caps for reaction vials, green, 1000 unit(s)
From €110,34
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Caps for reaction vials, blue, 1000 pieces, art. AEX4.1Carl Roth
Carl Roth Caps for reaction vials, blue, 1000 unit(s)
From €110,34
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Caps for reaction vials, white, 1000 pieces, art. AEX5.1Carl Roth
Carl Roth Caps for reaction vials, white, 1000 unit(s)
From €110,34
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Caps for reaction vials, red, 1000 pieces, art. AEX2.1Carl Roth
Carl Roth Caps for reaction vials, red, 1000 unit(s)
From €110,34
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Caps for reaction vials, yellow, art. AEX1.1Carl Roth
Carl Roth Caps for reaction vials, yellow, 1000 unit(s)
From €110,34
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Dropper cap, natural/red, PE-LD, long tip, GL 28, pack of 10 pieces, Hirschmann, art. 769072825Hirschmann
Hirschmann SCREW CAP NAT./RED PE-LD, LONG SPOUT, GL 28, PU=10 PCS.
€11,11
Dropper cap, natural/red, PE-LD, long tip, GL 28, pack of 100 pieces, Hirschmann, art. 7690728Hirschmann
Hirschmann SCREW CAP NAT./RED PE-LD, LONG SPOUT, GL 28, PU=100 PCS.
€90,70
Dropper cap, natural/red, PE-LD, long tip, GL 25, pack of 10 pieces, Hirschmann, art. 769072525Hirschmann
Hirschmann SCREW CAP NAT./RED PE-LD, LONG SPOUT, GL 25, PU=10 PCS.
€9,65

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Questions about Stoppers, caps & closures

Rubber stopper, ground-glass stopper or screw cap: which do I need?

It depends on the opening. Tubes and flasks with a plain neck, without ground joint or thread, are closed with a rubber or silicone stopper; see rubber and silicone stoppers. Glassware with a ground joint needs a glass stopper of the same NS size for a tight, solvent-resistant seal; see ground joint glass stoppers. Bottles with a thread take a screw cap of the matching GL size. Lids and seals for jars, plates and other containers are grouped separately in the menu. Not sure what your vessel needs? Ask sales@luminixhealth.com.

How do I find the right closure size?

Each closure type has its own size system. For screw threads, read the GL size on the bottle, such as GL 45, and choose a cap with the same size; see screw caps and closures. For ground joints, the NS size on the glass, such as 29/32, gives diameter and length, and the stopper must carry the same size. For rubber stoppers, measure the inner diameter of the neck: it must fall between the bottom and top diameter of the stopper. Not sure about your size? Send us a photo of the neck or marking: sales@luminixhealth.com.

Why Stoppers, caps & closures?

A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.

The wider catalogue is Labware. Luminix Health distributes this range for laboratory use.

What sits in this category?

Open Screw caps & closures, Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).

How does ordering and shipping work?

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

Which other categories should I open?

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.