Lab Flasks

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

DeLong culture flask Ideal for growing, storing and mixing of aerobic and anerobic cultures Borosilicate glass Type 1, Class A Graduated to approximate volumes

Our distilling flasks are made from low-expansion borosilicate glass. Uniform wall thickness provides superior mechanical strength and shock resistance. Long side arm is ideal for distillation applications. Feature large white block letters for easy identification of capacity.

Non-treated, sterile flasks for suspension cell cultures White caps for easy identification Extra caps in every carton Non-pyrogenic White caps for easy identification Ergonomic design for easy handling and pipetting Filter cap ensures constant airflow while minimizing chances of contamination...

70 mm top cap Two angled side-arms Corning® disposable spinner flask system comes ready-to-use with paddle and integrated magnet, eliminating the need for time-consuming assembly or cleaning and reassembly. Made of USP XXXIII Class VI polystyrene, the vessel is comparable to conventional glass...

Pre-mounted stainless steel clamps for Bellco Erlenmeyer flask. Flask Tray fits on top of the standard tray platform. Includes clamps. Specifications: Flask Positions: 16 Dimensions: 25x25mm Size: 50ml

Storage flask sidearm has a 9mm OD tubulation for use with 3/8" Cajon® connections. Chem-Vac™ Chem-Cap® valve is used to control gas or liquid flow into the vessel.

Dewar Flask, Low Form, Hemispherical Multiple sizes available, with aluminum base to allow transfer of magnetic field. *Due to extra high vacuum, the Dewar flasks still have a rare possibility to explode, so working behind a safety shield in hood and always wearing goggles are strongly recommended.

These KimCote® plastic-coated Erlenmeyer Flasks have large openings, GL 45 thread closures to make filling easier and provide tight seals during storage. Flasks come with blue polypropylene caps and clear pour rings. Marking spots and scales are durable white ceramic enamel.

Three-neck or four-neck flask top with a flat ground flange for use with cylindrical and spherical flasks having the same ID Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

An excellent alternative to glass flasks, these plastic flasks are made from PP and are gravimetrically calibrated “to contain” at 20°C. These volumetric flasks meet Class B tolerances per DIN EN ISO 1042.

Vented Overcap and Solid Overcap can be used directly on the adaptor caps to block dust and bacteria. Vented Overcap is equipped with a 0.22 μm hydrophobic breathable membrane to achieve aseptic ventilation during liquid transfer.

10cm² gas permeable membrane surface with 100 mL media capacity. Expand 5 million cells into between 200 to 400 million cells in about 10 days with NO medium exchange. [Validated Sterile Fluid Path]

With Cell Suspension Stirrer, Celstir® Entire flask assembly can be autoclaved Offered in six sizes, working capacities 25 to 1,000 mL Easy access through side arms Of Wheaton “200” borosilicate glass Cylindrical with screw neck and polypropylene cap Teflon®-faced cap, silicon...

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: 4L Break Resistant Lip Dimensions: 205 X 360 Case Quantity: 2

Round bottom single neck flask having a standard taper outer joint with a Chem-Vac™ Chem-Cap® valve sidearm. Plug may be removed for sampling from flask while a purge of inert gas is maintained thru the sidearm. Valve size is as listed.

PYREX® VISTA volumetric flasks provide precise volume measurement. The necks are tooled for Standard Taper glass stoppers. The graduation line is sharp and permanent and large blue block letters make the inscription easy to read. The 1 mL and 2 mL sizes are test tube shaped.  These Class A...

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...

Manufactured from Type 1, Class A, Borosilicate glass and ideal for media storage and mixing Long-skirted screw cap protects flask contents from contamination

The Bellco Glass spring clamp is designed to securely hold 50 mL Erlenmeyer flasks during experiments. It provides a stable and reliable grip, ensuring that flasks remain in place during shaking or other laboratory procedures. The clamp requires the use of the Bellco Glass part number 8970620 for...

50cm² gas permeable membrane surface area with 500 mL media capacity. Expand 25 million cells into between 1 billion to 2 billion cells in about 10 days with NO medium exchange. [GAMMA IRRADIATED. For non-clinical, non-therapeutic, research use only.]

With two vertical necks and a round bottom, these borosilicate glass flasks feature a side neck Standard Taper 24/40 outer joint. The center Standard Taper joint varies with flask capacity.

Pear shape HEAVY WALL flask with a standard taper outer joint. Reinforce your laboratory's capabilities with Chemglass' Heavy Wall, Pear Shaped Flasks. Engineered with a robust design, these flasks are ideal for demanding chemical processes including distillation and reaction procedures. Their...

Individual well specifications: 2cm² gas permeable membrane with 8mL media capacity. Expand 1 million cells into between 40 to 80 million cells in about 12 days with only two exchanges of medium. [GAMMA IRRADIATED. For non-clinical, non-therapeutic, research use only. No certificate provided.]