Hollow or solid glass stoppers close glassware items including flasks, funnels, and cylinders to shut out environmental elements for uncontaminated reaction testing. Simple to grease for heating or vacuum procedures, the slightly tapered ground glass joints are easy to rotate for a band without streaks or bubbles. Easily grip penny and hex head design tops for a clean removal upon operating completion. The tightly sealing apparatus closures come in any size needed for a leak-proof seal.
Pennyhead Stopper, Solid Glass, Glassco
Stoppers are made from Borosilicate 3.3 glass.
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Pennyhead Glass Stoppers, Ace Glass Incorporated
These pennyhead style glass stoppers are hollow
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Stoppers, PTFE-Clad Glass, Ace Glass Incorporated
These are hollow glass stoppers with PTFE-Clad tapered section for controlled expansion and no jamming.
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Round-Head Glass Stoppers, Ace Glass Incorporated
Round-head style glass stoppers are available in a variety of lengths and sizes
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Full Length Hex Head Hollow Glass Stopper, Kimble Chase
Hollow glass hex head stopper for use with ungraduated addition funnels with a pressure equalizing line.
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SP Wilmad-LabGlass Solid Pennyhead [ST] Stoppers, Medium Length, SP Industries
Solid glass, medium length stoppers.
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KONTES® Pennyhead [ST] Stoppers, Full Length, Kimble Chase
Glass [ST] stoppers for use in the same size outer joints
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KIMAX® Glass Pennyhead [ST] Stoppers, Flask Length, Kimble Chase
Stoppers are for use with flasks, mixing cylinders, separatory funnels, and other glassware
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Firestone Hy-n-Dry Stopper, Ace Glass Incorporated
The Firestone Hy-n-Dry stopper inexpensively makes any standard taper vessel a desiccator
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Stoppers, Full Length with Hook, Ace Glass Incorporated
Stopper is hollow with internal hook for hanging reactants in flasks.
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Spherical Joint Stopper Cap, Ace Glass Incorporated
Cap-type stoppers have spherical joints and are used to seal unused ports on Air Sampling Manifolds
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SP Wilmad-LabGlass Hollow Pennyhead [ST] Stoppers, Full Length, SP Industries
Hollow, precision ground glass stoppers with closed bottom.
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Hollow Glass Spherical Stopper, PTFE-Clad, Ace Glass Incorporated
Hollow glass spherical stoppers, PTFE-Clad to provide the ultimate in no-jam engagement.
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Medium Length Hex Head Hollow Glass Stoppers, Kimble Chase
Stoppers are used with laboratory glassware such as flasks, mixing cylinders, and separatory funnels
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PTFE Full Length Stoppers, Ace Glass Incorporated
Standard taper 24/40 size is solid; standard taper 45/50 is hollowed from top, bottom closed.
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Micro/Mini-Lab Cap Stopper, Ace Glass Incorporated
With a standard taper 14/10 outer joint externally threaded for making O-Ring Cap Seal connection with mating inner joint
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Standard Taper Glass Stopper with KEM-KLAMP® Lug, Kimble Chase
Designed for use with 675500 series KEM-KLAMPS®
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Replacement Plug for Jacketed Cylindrical Flasks, Ace Glass
Replacement glass plug for use with Ace Scale-Up Series Flasks, or general jacketed cylindrical flasks.
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PYREX® Pennyhead Stopper, Corning
PYREX® glass pennyhead stoppers are generally used in flasks and separatory funnels.
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KONTES® Solid Pennyhead [ST] Stoppers, Kimble Chase
Glass stoppers for use with flasks, mixing cylinders, separatory funnels, and more
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Glass Stopper, Flask Length, Pennyhead, Chemglass
Solid glass stoppers are designed for use with flasks, mixing cylinders, and varied laboratory glassware.
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Stoppers, Penny-Head, Glass, Solid, Chemscience
Solid penny head glass stoppers are with an interchangeable ground joint.
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PYREX® Hollow [ST] Reagent Bottle Stoppers, Corning
Combination glass stoppers with closed bottoms may be used as [ST] joint stoppers and as reagent bottle stoppers
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PYREX® Hollow [ST] Flask Stoppers, Corning
These PYREX® hollow borosilicate glass stoppers are light weight, strong to reduce chipping and breakage. Barrel shaped head makes it easy to clean and rotate in or out. Grooves in the sides help prevent slippage.
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Vee Gee Glass Stoppers
These stoppers are lightweight yet very strong to reduce chipping and breakage, thus minimizing replacement costs.
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Synthware Stopper with #15 O-Ring Joint, Kemtech America
Designed for use with manifolds equipped with #15 O-rings.
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Synthware Solid Pennyhead [ST] Stoppers, Glass, Kemtech America
Solid glass penny head stopper.