Top Glass Stopcock

Laboy Glass 250mL Addition Graduated Pressure Equalizing Dropping Funnel/Lines with 24/40 Joint at Top & 2mm PTFE Stopcock Chemistry Lab Glassware

  • DESIGN----The pressure equalizing funnel is a special type of dropping funnel .Comparing to the ordinary cylindrical dropping funnel and pear-shaped separatory dropping funnel,it is designed with an additional glass tube at side from the top of cylindrical body to the tube between the stopcock and lower male joint.The funnel features a graduated cylindrical tube as main body,with standard joints at top and bottom,a PTFE stopcock above the lower joint..
  • ADVANTAGE---A pressure equalizing funnel is used to add exact amounts of liquid to the receiving flask slowly and smoothly.With the side narrow-bore tube,the liquid form the funnel drops smooth without having to remove the glass joint stopper.In a reflux reaction,the funnel will be attached to one neck of the receiving flask,while the reflux condenser will be placed on the other neck.It is also ideal to handle air-sensitive reagents in a sealed,inert-gas environment..
  • DIMENSIONS------This graduated addition funnel has a capacity of 250mL,with 24/40 top and bottom joints, with a 4mm PTFE stopcock above the lower male joint..
  • HEAVY WALL ---This dropping funnel is heavy-wall designed , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 800 degree Ce....
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Adamas-Beta 25mL Pear-Shaped Schlenk Flask Tube Kjeldahl-Style Reaction Flask with Glass Stopcock & 14/20 Joint for Laboratory,Borosilicate Glass

  • Package Includes: 1Pcs Pear-Shaped Schlenk Flask..
  • Specification:Various specifications are availiable,10ml-1000ml.Glass stopcock and PTFE stopcock and High Vacuum Valve are for your choice..
  • Material:Made of borosilicate glass, high strength and hardness, fine workmanship, no bubble and no texture..
  • Application: It is widely used in chemical industry, metallurgy, food, medical and health care, biochemical experiment, analytical and experimental chemistry research and other fields..
  • Promise - Adamas-Beta dedicates to providing products of high quality and premium service, if you have any problems, please don't hesitate to contact us, we will solve them immediately..
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DONLAB FLR-01 ASTM STD Glass 100ml SCHLENK Reaction Flask 24/40 Joint with Glass Stopcock

  • Vacuum degree: High Vacuum Valve Stopcork 003e Glass Stopcork 003e PTFE Stopcork.
  • The man-blowing Borosilicate 3.3 glass is uniform and flawfree.
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DONLAB FLR-02 ASTM STD Glass 250ml Round Bottom Reaction Flask 24/40 Joint Glass Stopcock

  • Vacuum degree: High Vacuum Valve Stopcork 003e Glass Stopcork 003e PTFE Stopcork.
  • The man-blowing Borosilicate 3.3 glass is uniform and flawfree.
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DADAKEWIN 500ml Reaction Flask Kjeldahl Reaction Ball-Shaped Borosilicate 3.3 Glass with 29# Joint, PTEF Stopcock Customizable Lab Flasks Glassware (Size : 500ml/29#)

  • Package include: a 500ml Lab Reaction Flask with 29# Joint, PTEF Stopcock and Long single neck.
  • Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
  • This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock connecting to a vacuum or inert gases source. the top ground glass joint is used to attach the flask to other lab glassware apparatus, or stopped by a penney head stopper, rubber septum, permitting easy transfer of liquids or solids..
  • Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. 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..
  • Great for Professional Laboratories, Classrooms & Household.
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..
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DADAKEWIN 150ml Reaction Flask Kjeldahl Reaction Ball-Shaped Borosilicate 3.3 Glass with 19# Joint, PTEF Stopcock Customizable Lab Flasks Glassware (Size : 150ml/19#)

  • Package include: a 150ml Lab Reaction Flask with 19# Joint, PTEF Stopcock and Long single neck.
  • Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
  • This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock connecting to a vacuum or inert gases source. the top ground glass joint is used to attach the flask to other lab glassware apparatus, or stopped by a penney head stopper, rubber septum, permitting easy transfer of liquids or solids..
  • Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. 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..
  • Great for Professional Laboratories, Classrooms & Household.
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..
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DADAKEWIN 100ml Reaction Flask Kjeldahl Reaction Ball-Shaped Borosilicate 3.3 Glass with 24# Joint, PTEF Stopcock Customizable Lab Flasks Glassware (Size : 100ml/24#)

  • Package include: a 100ml Lab Reaction Flask with 24# Joint, PTEF Stopcock and Long single neck.
  • Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
  • This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock connecting to a vacuum or inert gases source. the top ground glass joint is used to attach the flask to other lab glassware apparatus, or stopped by a penney head stopper, rubber septum, permitting easy transfer of liquids or solids..
  • Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. 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..
  • Great for Professional Laboratories, Classrooms & Household.
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..
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SP Bel-Art Glass 15ml Automatic Burette; 500ml Reservoir (H37918-0110)

  • 50ML / 2000ML || Automatic zero burette with 50ml capacity mounted on a 2000ml reservoir - Includes automatic zero facility.
  • CLASS B || Class B with 34/35 joint size, 0.10±ml tolerance and 0.10ml sub. divisions - Accurate as per ISO 385.
  • SCHELLBACH + STOPCOCK || Unique features of Schellbach auto zero burettes include a vertical white stripe with central blue ribbon to facilitate accurate reading of the meniscus and an intermediate PTFE stopcock which facilitates the complete drainage of excess liquid back into the reservoir.
  • DURABLE & STURDY || Both burette and reservoir are made of precisely bore high quality, heavy duty Borosilicate 3.3 glass - Built to last.
  • PREMIUM QUALITY || Features chemical resistant blue printing - Individually calibrated to deliver (TD) precise volume - With custom foam packaging for safe transport and storage - All contents are included in a single package.
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DONLAB FLR-01 ASTM STD Glass 50ml SCHLENK Reaction Flask 24/40 Joint with PTFE Stopcock

  • Vacuum degree: High Vacuum Valve Stopcork 003e Glass Stopcork 003e PTFE Stopcork.
  • The man-blowing Borosilicate 3.3 glass is uniform and flawfree.
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1000ml Glass Separatory Funnel Set, 1000ml with Glass Stopcock and Ringstand

  • 1000ml glass separatory funnel with glass stopcock.
  • Electroplate steel ring outer diameter 4" | 10cm.
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Squibb Separating Funnel, 500ml - 24/29 Plastic Stopper, Glass Key Stopcock, Graduated - Borosilicate Glass - Eisco Labs

  • Made of high quality, heavy duty Borosilicate glass.
  • Includes interchangable plastic stopper. Socket size 24/29.
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Dropping Funnel, 500ml - PTFE Key Stopcock, Open Top, Cylindrical - Ungraduated - Cylindrical, Borosilicate Glass - Eisco Labs

  • Made of high quality, Borosilicate glass.
  • Cylindrical Dropping Funnel, made of high quality borosilicate glass.
  • Perfect for any science or home laboratory.
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