Lab Flasks

Non-baffled flasks are ideal for growing, mixing and storing both aerobic and anaerobic cultures. Graduated to approximate volumes. Delong style neck is made to fit stainless steel or plastic closures, while reducing the amount of splashing that would reach the closure.

Sibata Glass Filtering Flasks  Constructed of heavy wall borosilicate glass to withstand high vacuum  Used in conjunction with vacuum filter systems, these filtering flasks feature heavy-duty rims to reduce chipping  Feature white permanent graduations and large marking square...

Made of high quality, heavy duty, borosilicate 3.3 glass Beaded rim facilitates proper stopper fit (stopper not included) Class B tolerance, as per ISO 1042 Features a single graduation mark for precise dilution and preparation Volumetric flask made of high quality, heavy duty borosilicate 3.3...

These 10mL PYREX® Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable white enamel. An extra large marking space is also...

Round bottom, HEAVY WALL three neck flask with standard taper outer joints on the center neck and 20º angled side necks. Flasks with 29/26 center necks have a groove tooled just below the grind to aid in clamping of the flask.

Stainless steel bottom base for extra strength includes four rubber feet for added stability. Carriers are dishwasher and oven safe. For use with 6L or 9L vessels or carboys.   Specifications:          Material: Stainless...

Screw cap TC calibrated Class A tolerances Pyrex® flasks have an extra heavy-duty glass wall that significantly increases product durability. The wide funnel-like screw top plus the wide neck design allows for easy filling and mixing of various materials into solution. This extra wide neck also...

Polypropylene Graduated Erlenmeyer Flask Flask have wide-mouth design for easy pouring and printed scale of approximate volumes Specifications: Material: Polypropylene Includes: Polypropylene Screw Cap Size:1000mL Volume: 1000mL x 200mm Thread: 52mm Case Quantity: 4  

Micro round bottom 3-neck flask with all 14/10 threaded outer joints. Supplied complete with open-top screw caps (MW-102-33) and Viton O-rings (MW-100-08).

Globe Glass volumetric flasks are calibrated to meet ASTM tolerance specifications for precise measurement in solution preparation and dilution.  A diamond etched graduation line indicates the calibrated capacity of each measuring flask.  Wide mouth options are available for easier filling...

PYREX VISTA flat bottom boiling flasks have full length outer 24/40 Standard Taper joints, but with shorter necks. Wall thicknesses are controlled to provide balance between thermal expansion and mechanical strength for greater shock resistance. The flat bottom boiling flasks are designed to ASTM...

Optimize time, incubator space, and resources with tissue culture-treated Multiple Layer Flasks Compact design shares the same footprint as 182cm2 flasks Flasks are available with 3 or 5 layers, and may be stacked for even more space saving

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.