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.
VWR®, Glass Stoppers for Standard Ground Joints
Supplier: VWR Collection
Borosilicate 3.3 glass.
Expand 8 Items
Stoppers for conical ground joints, PYREX®
Supplier: Corning
Hollow, full length stopper closed at the bottom from PYREX®, borosilicate glass.
Expand 2 Items
Stoppers for reagent bottle and ground joints, PYREX®
Supplier: Corning
Combination glass stoppers from PYREX®, borsilicate glass with closed bottoms may be used as [ST] joint stoppers and as reagent bottle stoppers. Barrel-shaped head is easy to clean and rotate, side grooves prevent slippage, and flat top allows stopper to stand on head.
Expand 3 Items
SBW glass stoppers, standard ground joint, octagonal
Supplier: DWK Life Sciences
These stoppers are made from SBW glass and have an octagonal head for good grip.
Expand 1 Items
Glass stoppers, standard ground joint, octagonal, DURAN®
Supplier: DWK Life Sciences
These stoppers are made from borosilicate glass 3.3 and have an octagonal head for good grip.
Expand 12 Items
Stoppers for conical ground joints
Supplier: Lenz Laborglas GmbH & CO.KG
DURAN®, borosilicate glass stopper, clear, solid or semi hollow.
Expand 4 Items
Stoppers, short ground, DURAN®
Supplier: DWK Life Sciences
DURAN®, borosilicate glass 3.3, clear.
Expand 6 Items
Glass stoppers, standard taper, hexagonal, hollow
Supplier: Lenz Laborglas GmbH & CO.KG
These standard taper hollow stoppers are made from borosilicate glass 3.3 and have a hexagonal head.
Expand 11 Items
Stoppers, flat, diamond-ground, DURAN®
Supplier: DWK Life Sciences
DURAN®, borosilicate glass 3.3, clear.
Expand 9 Items
Stoppers for [ST] Flask PYREX®
Supplier: 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.
Expand 9 Items
Stoppers, pointed, diamond-ground, DURAN®
Supplier: DWK Life Sciences
DURAN®, borosilicate glass 3.3, clear.
Expand 9 Items
Hollow-blown glass stoppers, B-length, Quickfit®
Supplier: SciLabware
These glass stoppers are ideally suited for use with Quickfit® jointed glassware and other glassware having standard ground glass sockets.
Expand 2 Items
Glass stoppers for iodine flasks, Quickfit®
Supplier: SciLabware
Quickfit® iodine flask stoppers.
Expand 1 Items
Stoppers for conical ground joints
Supplier: Brand
DURAN®. Hollow, with drip tip and hexagonal grip.
Expand 9 Items
Stoppers, hollow
Supplier: CHEMGLASS
Hollow pennyhead glass stoppers with closed bottom.