Top 24 Best Glass Stopcocks in 2020

 

Laboy HMF050125 Glass 500 mL Airless-Ware ReactionStorage Schlenk Flask with 2440 Joint and Glass Stopcock

Laboy HMF050125 Glass 500 mL Airless-Ware Reaction/Storage Schlenk Flask with 24/40 Joint and Glass Stopcock

Laboy HMF050125 Glass 500 mL Airless-Ware Reaction/Storage Schlenk Flask with 24/40 Joint and Glass Stopcock - Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling. The glass out joint at top is used to add material in the flask and can be stopped by a ground glass stopper. When the flask is connected with a vacuum manifold under a positive pressure of inert gas, the stopper can be replaced with other apparatus, for example a reflux condenser. This standard schlenk flask is a round bottom, pear-shaped flask with a ground glass joint and a side arm, which has a 2mm glass stopcock to control the flask’s exposure to a vacuum manifold for a schlenk line.

 

Gilson Separating Funnel 250ml - Glass Stopcock - Plastic Stopper Socket Size 2932 - Borosilicate Glass - Eisco Labs

Gilson Separating Funnel, 250ml – Glass Stopcock – Plastic Stopper, Socket Size 29/32 – Borosilicate Glass – Eisco Labs

Gilson Separating Funnel, 250ml – Glass Stopcock – Plastic Stopper, Socket Size 29/32 – Borosilicate Glass – Eisco Labs - Autoclavable, with superior chemical durability. Body measures 3. 5″ in length and has an inner diameter of 7mm and an outer diameter of 10mm. Eisco labs borosilicate glass has the following heat tolerances strain point -515°c | annealing point 565°c | softening point 820°ceisco labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. Funnel measures 13. Low temperature gradient- can withstand high temperatures & thermal shocks. 250ml capacity, gilson style separating funnel made of high quality borosilicate glass. 25″ in diameter. Features a glass stopcock and a 29/32 size socket with an interchangeable plastic stopper. 75″ tall. Stem is 2. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.

 

SEOH Separatory Funnel Borosilicate Glass Stopcock 100 ml

SEOH Separatory Funnel Borosilicate Glass Stopcock 100 ml

SEOH Separatory Funnel Borosilicate Glass Stopcock 100 ml - Glass leak proof stopcock. Failure to provide a valid permit will result in a cancellation and refund of your order. Separatory funnel, conical pear shaped, is made of heat resistant borosilicate glass with ground glass stopcock and ground glass stopper. Texas residents under texas state law, this product requires a precursor chemical/laboratory apparatus nar-120 permit to ship to a texas address. After purchase, the seller will contact you via email to verify your permit. Capacity 100ml.

 

Deschem 2429 Glass Separatory Funnel Straight Drop Tip Pyriform Pear Shape WGlass Stopcock and Stopper

Deschem 24/29 Glass Separatory Funnel Straight Drop Tip Pyriform Pear Shape W/Glass Stopcock and Stopper

Deschem 24/29 Glass Separatory Funnel Straight Drop Tip Pyriform Pear Shape W/Glass Stopcock and Stopper - 3(3)volume 60ml 125ml 250ml 500ml 1000ml(4)glass stopcock(5)glass ground joint 24/29. Deschem lab glass pyriform separatory funnel,straight tube,pear shape(1)separatory funnelpear shape(2)materialborosilicate 3.

 

Laboy Glass Double Schlenk Line Maniflod Vacuum Gas Distributor with 5-Port Solid Glass Stopcock Front-Left-RightRear-Left Hose Opens 550mm in Length

Laboy Glass Double Schlenk Line Maniflod Vacuum Gas Distributor with 5-Port Solid Glass Stopcock Front-Left-Right &Rear-Left Hose Opens 550mm in Length

Laboy Glass Double Schlenk Line Maniflod Vacuum Gas Distributor with 5-Port Solid Glass Stopcock Front-Left-Right &Rear-Left Hose Opens 550mm in Length - Distance between stopcocks is 100mm center to center. Double banks. With 4mm double oblique, high vacuum solid glass stopcocks solid glass stopcocks have constant pressure retention devices.

 

Labasics Borosilicate Glass 2000ml Conical Separatory Funnel with Glass Stopcock - 2000mL

Labasics Borosilicate Glass 2000ml Conical Separatory Funnel with Glass Stopcock – 2000mL

Labasics Borosilicate Glass 2000ml Conical Separatory Funnel with Glass Stopcock – 2000mL - Conical design ensures efficient separation. Labasics ensures premium customer service if received damaged, please contact us immediately we will solve it until satisfied. 2000 ml separatory funnel. Made of borosilicate glass. 2000ml glass separatory funnel for separating liquids with different densities.

 

Proglass Sublimatorwith 2mm Glass StopcockJoint 244025mL

Proglass Sublimator,with 2mm Glass Stopcock,Joint 24/40,25mL

Proglass Sublimator,with 2mm Glass Stopcock,Joint 24/40,25mL - Joint:24/40 10mm hose connection 2mm glass stopcock made of borosilicate glass made by hand blowing supplied with a special 25ml long-neck flask for small volume efficiency.

 

Laboy Glass Vacuum Flow-Control Adapter 90DGR Bent Hose Connection with Glass Stopcock 1922 Male Joint

Laboy Glass Vacuum Flow-Control Adapter 90DGR Bent Hose Connection with Glass Stopcock & 19/22 Male Joint

Laboy Glass Vacuum Flow-Control Adapter 90DGR Bent Hose Connection with Glass Stopcock & 19/22 Male Joint - The 2mm glass stopcock provides on/off control with the main valve to regulate the flow into reaction system. The glass adapter is made of borosilicate glass 33,high quality,heavy wall,durable and reusable. The flow control adapter is with 2mm glass stopcock,bent 8mm hose connection,19/22 standard taper inner joint. 100% 45 day money back guarantee simply return for a full refund without any reason,no questions asked. Allows for flexible tubing to be connected to apparatus for introduction of vacuum or pressure in vacuum distillation.

 

GSC International SFGS100 Separatory Glass Funnel with Glass Stopcock 100ml

GSC International SFGS100 Separatory Glass Funnel with Glass Stopcock, 100ml

GSC International SFGS100 Separatory Glass Funnel with Glass Stopcock, 100ml - The funnel has a 100ml capacity, and has a 19/26 top joint. Separatory funnels are commonly used in liquid based extractions to separate the parts of the mixture into two solvent phases of different densities. This separatory funnel is made from quality borosilicate glass, and has a glass stopcock.

 

Separatory Funnel with Glass Stopcock 250ml

Separatory Funnel with Glass Stopcock, 250ml

Separatory Funnel with Glass Stopcock, 250ml - These 250ml capacity borosilicate glass separatory funnels have a ground glass stopcock and come with a ground glass stopper.

 

Lab glass Vacuum Adapter 2440 joint with Glass Stopcock

Lab glass Vacuum Adapter 24/40 joint, with Glass Stopcock

Lab glass Vacuum Adapter 24/40 joint, with Glass Stopcock - Vacuum adapter, with glass stopcock, 24/40 joint material borosilicate glass 3. 3, both joints size 24/40.

 

SEOH Separatory Funnel Borosilicate Glass Stopcock 50 ml

SEOH Separatory Funnel Borosilicate Glass Stopcock 50 ml

SEOH Separatory Funnel Borosilicate Glass Stopcock 50 ml - Failure to provide a valid permit will result in a cancellation and refund of your order. Glass leak proof stopcock. Separatory funnel, conical pear shaped, is made of heat resistant borosilicate glass with ground glass stopcock and ground glass stopper. Texas residents under texas state law, this product requires a precursor chemical/laboratory apparatus nar-120 permit to ship to a texas address. After purchase, the seller will contact you via email to verify your permit. Capacity 50ml.

 

SEOH Separatory Funnel Borosilicate Glass Stopcock 500 ml

SEOH Separatory Funnel Borosilicate Glass Stopcock 500 ml

SEOH Separatory Funnel Borosilicate Glass Stopcock 500 ml - Failure to provide a valid permit will result in a cancellation and refund of your order. Glass leak proof stopcock. Texas residents under texas state law, this product requires a precursor chemical/laboratory apparatus nar-120 permit to ship to a texas address. Capacity 500ml. After purchase, the seller will contact you via email to verify your permit. Separatory funnel, conical pear shaped, is made of heat resistant borosilicate glass with ground glass stopcock and ground glass stopper.

 

Proglass AdaptersFlushingAirfreeSchlenkThree WaysGlass Stopcock2440

Proglass Adapters,Flushing,Airfree,Schlenk,Three Ways,Glass Stopcock,24/40

Proglass Adapters,Flushing,Airfree,Schlenk,Three Ways,Glass Stopcock,24/40 - Made by hand blower. Made of borosilicate glass g33. 24/40 joints. Glass stopcock with the spring.

 

GSC International SFGS500 Separatory Glass Funnel with Glass Stopcock 500ml

GSC International SFGS500 Separatory Glass Funnel with Glass Stopcock, 500ml

GSC International SFGS500 Separatory Glass Funnel with Glass Stopcock, 500ml - The funnel has a 500ml capacity, and has a 19/26 top joint. This separatory funnel is made from quality borosilicate glass, and has a glass stopcock. Separatory funnels are commonly used in liquid based extractions to separate the parts of the mixture into two solvent phases of different densities.

 

Vacuum Flow Control Adapter with Glass Stopcock 90° Angled 2440 Joint and Bent Hose Connection for Lab Supply

Vacuum Flow Control Adapter with Glass Stopcock, 90° Angled, 24/40 Joint and Bent Hose Connection for Lab Supply

Vacuum Flow Control Adapter with Glass Stopcock, 90° Angled, 24/40 Joint and Bent Hose Connection for Lab Supply - With 24/40 inner joint and bent 90 degree hose connecting. Premium glass stopcock. Commonly used to regulate the flow of gases or liquids into reaction systems. High quality take-off adapter. Allows for flexible tubing to be connected to apparatus for introduction of vacuum or pressure.

 

American Educational Borosilicate Glass 25mL Automatic Burette with Ground Glass Stopcock and Amber Storage Container

American Educational Borosilicate Glass 25mL Automatic Burette, with Ground Glass Stopcock and Amber Storage Container

American Educational Borosilicate Glass 25mL Automatic Burette, with Ground Glass Stopcock and Amber Storage Container - Made of borosilicated glass and is permanently graduated. It includes an amber reservoir bottle with a rubber stopper. Capacity 25 milliliters. It is numbered every 1ml and has 01ml subdivisions. The automatic burette has a ground glass stopcock with an amber storage container for storing and dispensing standard solutions.

 

Glass Separatory Funnel 1000ml With Glass Stopcock

Glass Separatory Funnel, 1000ml With Glass Stopcock

Glass Separatory Funnel, 1000ml With Glass Stopcock - Ptfe stopcocks to eliminate freezing and lubricant contamination and to provide a precision fit within the barrel. Supplied with ptfe stopcocks to eliminate freezing and lubricant contamination and to provide a precision fit within the barrel. Commonly used for the final separation of essential oil from hydrosol after steam distillation. Stoppers are made of polyethylene. Pear-shaped design, widely used in organic chemistry for separating organic from aquatic products. The stopcock bores, body openings, and stems are carefully aligned for even liquid flow with fast cut-off.

 

Separating Funnel 250ml - Pear Shaped - 1926 Plastic Stopper Glass Key Stopcock Stem with Cone - Borosilicate Glass - Eisco Labs

Separating Funnel, 250ml – Pear Shaped – 19/26 Plastic Stopper, Glass Key Stopcock, Stem with Cone – Borosilicate Glass – Eisco Labs

Separating Funnel, 250ml – Pear Shaped – 19/26 Plastic Stopper, Glass Key Stopcock, Stem with Cone – Borosilicate Glass – Eisco Labs - They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments. This 250ml separating funnel has a robust pear shaped body with a 3″ diameter at its widest point. Eisco labs borosilicate glass has the following heat tolerances strain point -515°c | annealing point 565°c | softening point 820°c. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. Eisco labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Autoclavable, with superior chemical durability. The spout has a 3/8″ outer diameter and a 1/4″ interior diameter. 5″ in height when positioned upright and is designed with a glass stopcock that allows optimal control of flow when working with liquids in the lab. Low temperature gradient- can withstand high temperatures & thermal shocks. The interchangeable plastic 19/26 stopper fits 1″ opening at the top of the funnel, and the spout measures 3″ down from the stopcock. The item measures 10.

 

Gilson Separating Funnel 500ml - Glass Stopcock - Plastic Stopper Socket Size 2932 - Borosilicate Glass - Eisco Labs

Gilson Separating Funnel, 500ml – Glass Stopcock – Plastic Stopper, Socket Size 29/32 – Borosilicate Glass – Eisco Labs

Gilson Separating Funnel, 500ml – Glass Stopcock – Plastic Stopper, Socket Size 29/32 – Borosilicate Glass – Eisco Labs - 5″ long, 4″ width at widest pointeisco labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Gilson style separating funnel made of high quality, heavy duty borosilicate glass 500ml capacity socket size 29/32 glass stopcock 15. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind.

 

American Educational Replacement Tube for 25mL Automatic Burette with Ground Glass Stopcock

American Educational Replacement Tube for 25mL Automatic Burette, with Ground Glass Stopcock

American Educational Replacement Tube for 25mL Automatic Burette, with Ground Glass Stopcock - Replacement tube. Use with 25ml automatic burette with ground glass stopcock. Pack of 1.

 

Separating Funnel 2000ml - Pear Shaped - 2932 Plastic Stopper Glass Key Stopcock Stem with Cone - Borosilicate Glass - Eisco Labs

Separating Funnel, 2000ml – Pear Shaped – 29/32 Plastic Stopper, Glass Key Stopcock, Stem with Cone – Borosilicate Glass – Eisco Labs

Separating Funnel, 2000ml – Pear Shaped – 29/32 Plastic Stopper, Glass Key Stopcock, Stem with Cone – Borosilicate Glass – Eisco Labs - It is made from quality borosilicate glass. 375 inch opening at the top of the funnel. This 2000ml separating funnel has a robust pear shaped body with a 6 inch diameter at its widest point. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. Ungraduated. Eisco labs borosilicate glass has the following heat tolerances strain point -515°c | annealing point 565°c | softening point 820°c. The item measures 16 inches height when positioned upright and is designed with a glass stopcock that allows optimal control of flow when working with liquids in the lab. The interchangeable 29/32 stopper fits the 1.

 

Separatory Funnel Set 500ml with Glass Stopcock and Ringstand

Separatory Funnel Set, 500ml with Glass Stopcock and Ringstand

Separatory Funnel Set, 500ml with Glass Stopcock and Ringstand - Separatory funnels pear-shaped design, widely used in organic chemistry for separating organic from aquatic products. These funnels all have ground glass stoppers and stopcocks separatory funnel set a complete set-up, including 20″ support stand, separatory funnel, and 3″ support ring.

 

KimLab MFC-R-6F Glass 6 Ports Single Manifold Vacuum Gas Distributor with 2mm PTFE Stopcocks and Right Air Nozzle

KimLab MFC-R-6F Glass 6 Ports Single Manifold Vacuum Gas Distributor with 2mm PTFE Stopcocks and Right Air Nozzle

KimLab MFC-R-6F Glass 6 Ports Single Manifold Vacuum Gas Distributor with 2mm PTFE Stopcocks and Right Air Nozzle - The side gas nozzle is 10mm od and the lower stopcocks gas nozzle is 105mm od. The stopcock spacing is 70mm. The outer diameter of the main tube is 28mm. Right hose open. Single-tube manifold vacuum gas distributor 6 ports with 2mm ptfe stopcocks.





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