Lab Flasks

Spectral transmission varies from 0 at 300 nm to 4% at 500 nm With barrel-shaped, No. 27 Standard Taper stopper Capacity: 250 mL The protective color is an integral part of the flask, which retains the mechanical strength, chemical stability and thermal resistance of PYREX brand labware.

These PYREX(r) pear-shaped boiling flasks have full length outer 14/20 Standard Taper joints and are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance....

Pack of 2 Filter Flasks with easy-to-read white enamel graduations INTEGRAL SIDE ARM || Conical flask with tubulated integral side arm HEAVY WALL || Heavy wall design for safe use under vacuum pressure INDUSTRIAL QUALITY || Made of high quality, heavy duty, borosilicate 3.3 glass with excellent...

SYNTHWARE round bottom single neck reaction flask with a standard taper outer joint and a 2mm bore glass stopcock sidearm. Useful for sample storage and simple reactions. The stopcock has a constant pressure retention device.

KIMAX flask is permanently marked with an individual serial number and is supplied with a Certificate of Graduation Accuracy. Graduation ring is blasted on the neck. Calibrated "to contain", flasks are supplied with a marking spot and a standard taper glass stopper. Designed from ASTM...

Flasks are manufactured to conform to Federal Specifications NNN-F-289 for Type 1, Class" A" unserialized flasks and ASTM E-288. Supplied complete with one closed bottom polyethylene stopper. For additional stoppers, see CG-8740. NOTE: THE CG-1602-20 CONFORMS TO ISO 1042, DIN 12664 CLASS...

Features: Increased SAFETY- Unbreakable Lightweight Design Each Dewar is Supplied with a Lid Patented Closed Cell Foam Construction (USPTO # 7,971,744) Lower Boil Off and Consumption of Liquid Nitrogen Patented foam dewars provide a safe and durable vessel for handling liquid nitrogen, dry...

Round bottom Meets ASTM E1403, Type 1, Class 3

The double wild-mouth design enhances liquid filling and harvesting speed while minimizing bubbles. It also supports efficient gas exchange and high-density cell culture. With a quick-fit seal cap, it easily transitions between airtight and breathable states, accommodating varying oxygen and exhaust...

The double wild-mouth design enhances liquid filling and harvesting speed while minimizing bubbles. It also supports efficient gas exchange and high-density cell culture. With a quick-fit seal cap, it easily transitions between airtight and breathable states, accommodating varying oxygen and exhaust...

Synonyms: bottom flask; flask round; round flask Legal Information: Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Round bottom flasks, three vertical necks, standard taper outer joints, standard and heavy wall. Flasks feature a flare-out directly below the center joint to facilitate cleaning and removal of stir blades.

Manufactured from Type 1 Class A Borosilicate Glass. Ideal for use to prepare solutions, and to contain. Flat bottom bulb with a elongated neck with permanent graduation line and marking area. Volumetric flasks are calibrated for a particular temperature usually 20 degree Celsius. Specifications:...

Class A Borosilicate Glass, 3 side baffles positioned at 120 degree and 3 bottom baffles offset from side baffles, GL45 PP Membrane Cap has a sealed in 0.2µ PTFE membrane, cap can be tightened during autoclaving.

Polypropylene flasks are molded in one piece to withstand full vacuum to 30" Hg Oval marking area Autoclavable Tubulation at 45° angle prevents tipping. Barbed adapter accepts 1/4" to 3/8" I. D. tubing

Manufactured from Type 1 Class A Borosilicate Glass. Designed with deep side baffles for optimal agitation. Large bottom surface for easy access with Bellco large orifice pipette. Specifications: Type 1 Class A Borosilicate Glass Size: 500ml Break Resistant Lip Dimensions: 100 X 183mm Case Quantity:...

This is a 1L PYREX® replacement flask with a 29/42 outer Standard Taper joint for the No. 3840-XL 1L extractor system. The tubulation O.D. on the condenser is 10mm.

Borosilicate glass flasks are designed to give the best combination of thermal shock resistance and physical strength. Feature 24/40 jointed sockets and graduations in durable white enamel. Made from ASTM E-438 Type-1 Class A, Borosilicate 3.3 glass. These flasks comes with ground joints...

Manufactured from type 1 class A borosilicate glass with 3 bottom baffles and DeLong® neck. Flask includes a 25mm Bellco SST closure. Ideal for growing, storing and mixing of aerobic and anaerobic cultures.

Round bottom, HEAVY WALL two neck flask with standard taper outer joints on both the center neck and angled side neck. Flasks with 10/30 side neck are for use with CG-3506 thermometers. The 29/26 center neck flasks have a groove tooled just below the grind to aid in clamping of the flask.

DeLong culture flask Borosilicate glass Type 1, Class A Graduated to approximate volumes

A convenient set of 5 glass erlenmeyer flasks in sizes 50ml, 125ml, 250ml, 500ml, and 1000ml

United Scientific™ three-necked boiling flasks with ground glass 24/40 joints are made from low-expansion borosilicate glass. Feature uniform wall thickness for superior mechanical strength and shock resistance. 24/40 ground glass joints Available in four capacities Made from heavy-duty ASTM...

These biomass flasks are made from quality borosilicate glass. They all have a 24/40 ground glass bottom joint, but their top joints are all different sizes that are designed to fit our various distilling arms . The large top openings are ideal for inserting materials for distillation. PRODUCT...