10 Best Laboratory Pressure Glass In The Us - Black Friday 2024
Best Choice1
LabasicsLabasics Glass Vacuum Desiccator, Glass Lab Vacuum Desiccator with Glass Vacuum Valve and Porcelain Plate for Laboratory Research (9.4 Inch)
Main highlights- Warranty: Labasics 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
- The matte cover design enhances sealing performance, and it comes with a porcelain plate to isolate the sample from the desiccant
- The Labasics desiccator, a standard laboratory apparatus, employs a glass vacuum valve for quick removal of air and moisture; it is perfect for drying, safeguarding, or storing materials sensitive to moisture
- Inner diameter: 9.4 inch; Outer diameter: 12 inch; Height: 12.6 inch
- Attention: Keep the reading on the pressure gauge below -0.06MPa to avoid breaking the glass
9.8Exceptional
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Value for Money2
stonylabstonylab Glass Distillation Apparatus, Simple Distillation Kit with 24/40 Joint and 500 ml Reaction Flask for Normal Pressure/Low Vacuum Distillation Lab Glassware Kit
Main highlights- Warranty: for any damage, please contact us immediately for replacement
- Simple Glass Distillation Kit: designed for both standard pressure and low vacuum distillation; features a 24/40 joint
- Safety Precaution: important to keep the cooling circulating fluid temperature low to prevent pump damage or potential hazards during low-pressure distillation
- Durable Material: made with G3.3 high borosilicate glass, perfect for atmospheric distillation or attaching to a vacuum pump for reduced pressure distillation; thick wall design ensures high temperature and corrosion resistance, along with reusability
- Comprehensive Set Components: the kit includes a 500ml and a 250ml round bottom flask, a 75-degree distillation head, a thermometer adapter, a glass stirring rod, a straight condenser tube, a latex tube, and 5 joint clamps
9.7Exceptional
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3
stonylabstonylab 500ml Pressure Equalizing Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint with PTFE Stopcock for Laboratory, 500ml
Main highlights- StonyLab ensures products and premium customer service; if received damaged, please contact us immediately; we will solve it until satisfied
- Pressure Equalizing Addition Funnel is commonly used in general closed system experiments and experiments that require dripping solutions; it is mainly connected with reaction vessel to drop solution, which can isolate the air, prevent solvent from volatilizing, and speed up experiment process
- Cylindrical style with PTFE stopcock
- Capacity: 500ml
- 24/40 joint top and bottom
9.6Exceptional
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4
ADAMAS-BETAADAMAS-BETA Glass Constant Pressure Graduated Addition Funnel with Double PTFE Stopcocks,Equalizing Dropping Funnel Chemistry Lab Glassware (B: 500ml,24/40)
Main highlights- Warranty - Glassware is fragile, if received damaged, please don't hesitate to contact us,we will solve it until satisfied.
- Specification - various specifications are availiable,25ml,60ml,125ml,250ml,500ml.Glass stopcock and double PTFE stopcock are for your choice.
- Premium Material - Made of high-quality glass, durable and reusable, can withstand typical laboratory thermal variations in Chemistry processes.
- Lab Addition Funnels Design - The constant pressure addition funnel can keep the internal pressure unchanged, measure the gas volume more accurately .
- Advantages - When adding liquid to an ordinary separatory funnel, it is necessary to open the stopper on the upper end of the funnel or align the groove on the stopper with the small hole on the bottle mouth, so that the liquid in the funnel can flow down smoothly. While the constant pressure addition funnel has an upper connected tube, which can balance the air pressure without opening the stopper.
9.5Excellent
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5
ADAMAS-BETAADAMAS-BETA Glass Equalizing Dropping Funnel,Constant Pressure Funnel with PTFE Stopcock Chemistry Laboratory Glassware (250ml,24/40 Joint)
Main highlights- Warranty: Glassware is fragile, if received damaged, please don't hesitate to contact us, we will solve it until satisfied.
- Multiple sizes: Capacity 10ml,25ml,60ml,125ml,250ml,500ml,1000ml; joints 14/20,19/22,24/40,14/22. Various specifications are availiable for your choice.
- High Quanlity: Made of high-quality glass, durable and of high quality, can withstand typical laboratory thermal variations in Chemistry processes.
- Design: Comparing to an ordinary dropping funnel, the pressure-equalizing dropping funnels have an additional narrow-bore glass tube from the upper part of the funnel bulb to the ground glass joint around the stem at bottom. The pressures in the reservoir and the reaction flask are equal, and liquid will flow into the reaction flask even when the stopper is in place in the funnel. Pressure-equalizing dropping funnels are normally only used for inert atmosphere reactions.
- Advantage: When adding liquid to an ordinary separatory funnel, it is necessary to open the stopper on the upper end of the funnel or align the groove on the stopper with the small hole on the bottle mouth, so that the liquid in the funnel can flow down smoothly. While the constant pressure dropping funnel has an upper connected tube, which can balance the air pressure without opening the stopper.
9.4Excellent
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6
stonylabstonylab Graduated Pressure Equalizing Addition Funnel, Borosilicate Glass Dropping Funnel with 24/40 Joint and High Vacuum Valve for Laboratory Glass Additional Funnel, 50 ml
Main highlights- Warranty: StonyLab ensures high quality products and excellent customer service; if received damaged, please contact us immediately; we will solve it until satisfied
- StonyLab constant pressure dropping funnel is mainly used for the drip addition of liquids in experiments to prevent liquid back-siphoning and reduce the influence of liquid on air pressure in the system
- Cylindrical style with fully encapsulated vacuum valve
- Capacity: 50 ml; made of premium borosilicate glass; precise scale, heavy duty and reusable
- 24/40 standard joint at top and bottom for better connection with other instruments
9.3Excellent
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7
DeschemDeschem 500ml Glass High Pressure Bottle,95X205 Lab Heavy Wall Vessel W/#15 PTFE Thred
Main highlights- Softening Point------820℃
- Linear Coefficient of Expansion------ 32×10-7/℃
- Deschem Science Supply
- Be Made From G3.3 Borosilicate Glass
- Annealing Point ------560℃
9.2Excellent
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8
LABOYLaboy Glass 125mL Addition Graduated Pressure Equalizing Dropping Funnel/Lines with 24/40 Joint at Top & 2mm PTFE Stopcock Chemistry Lab Glassware
Main highlights- 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 Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling,durable and reusable.
- DIMENSIONS------This graduated addition funnel has a capacity of 125mL,with 24/40 top and bottom joints, with a 2mm PTFE stopcock above the lower male joint.
- 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 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.
9.1Excellent
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9
FriendaFrienda 20 Pcs Lab Glassware Include 4 Graduated Cylinder Set, 4 Glass Beaker Set, 3 Glass Dropper, 4 Stirring Rod, 5 Measuring Cups for Laboratory Equipment Science Chemistry Supplies
Main highlights- Wide Range of Applications: these beakers and graduated cylinders are practical gifts for experimenters and science students, very suitable for school projects, laboratories, science researches and so on
- Multiple Sizes to Meet Your Various Needs: measuring cups: 50ml, 100ml, 250ml, 500ml, 1000ml, glass stirring rods: 7.87 inches/ 20 cm, graduated cylinders: 100ml, 50ml, 25ml, 10ml, glass droppers: 90mm, 120mm, 200mm, lab beakers: 50ml, 100ml, 150ml, 200ml; Different sizes are suitable for various experiments
- Lab Glassware and Labware: there are 5 measuring cups, 4 glass stirring rods, 4 graduated cylinders, 3 glass droppers and 4 lab beakers, a total of 20 pieces of laboratory glassware; This is a complete range of products to meet your laboratory science needs and uses
- Easy to Use: the glass graduated cylinder and other science lab glassware are designed with clear scales for easy to read, and the measuring cups and graduated cylinders have tapered gates for easy to pour liquid
- Durable and Reliable Material: the science beakers, lab droppers, lab stirring rods and lab cylinders are made of quality borosilicate glass materials, which are thick and stable, acid and alkali resistant, available for long term use
9.0Excellent
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10
DeschemDeschem 1000ml,24/40,Glass Pressure Equalizing Funnel,W/Glass Stopcock,1L,Lab Glassware
Main highlights- Softening Point------820℃
- Linear Coefficient of Expansion------ 32×10-7/℃
- Deschem Science Supply
- Be Made From G3.3 Borosilicate Glass
- Annealing Point ------560℃
8.9Very Good
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