Lab Flasks

Water jacketed, flat bottomed spinner flasks consist of a water jacketed spinner flask, manufactured from Type 1 Class A borosilicate glass, and a microcarrier style impeller with glass shaft that extends through the cap and PTFE paddle. Flasks are typically used with a circulating water bath....

Borosil® Wide Mouth Class A Volumetric Flasks are individually calibrated by automatic, laser-controlled calibration equipment. Supplied with standard taper glass stoppers. Flasks comply with ASTM E-288, Class A. 20mL option is not covered in ASTM. 5mL, 10mL, and 20mL options have a trapezoidal...

Round bottom, HEAVY WALL flask with a standard taper outer joint and a side well to accept a thermometer. Top of thermowell is tooled to accept a #0 rubber stopper.

Manufactured from KIMAX™ borosilicate glass, ValueWare has a low coefficient of expansion and a very high resistance to chemical attack. This means optimal performance in the lab at an affordable price. Long life expectancy, resistant to most chemicals. Ideal for general laboratory use....

Alginates assay distillation system similar to the one described in US Pharmacopeia 2006, chapter 311. The system includes a metering valve with flow meter tube set, 250mL flask and mantle, reflux condenser with u-tube and hose connection adapters and a 250mL gas washing bottle. 5/16 in ID Vinyl...

These PYREX® multiple neck flasks have three vertical side necks with outer Standard Taper joints placed 90° apart and a larger center neck with a vertical Standard Taper joint.

Similar to CG-1603, but with PTFE stopper. Delivering high-quality precision and durability, this micro volumetric flask with a PTFE stopper is essential for any laboratory setting. Designed to meet Class A standards, it ensures the highest level of accuracy in measurements and dilutions of liquids....

Made of high quality, heavy duty, borosilicate 3.3 glass Single graduation line for precise dilution and preparation Class B tolerance conforms with ASTM-E288 standards Fitted with solid, glass pennyhead stopper Volumetric flask made of high quality, heavy duty borosilicate 3.3 glass. Single...

These borosilicate glass distilling receivers with inner and outer Standard Taper joints are used to determine the amount of dilution in crankcase oils when gasoline has been used as fuel. Receiver design keeps heat-sensitive materials away from the hot base of the flask. Calibrated "to...

Quartz single neck round bottom flask with standard taper outer joint. This round bottom, single neck flask is crafted from high-quality quartz, which is known for its exceptional thermal stability and chemical resistance. It is suitable for a variety of laboratory applications, including heating,...

Ai 24/40 standard taper joint, heavy wall oval-shaped, round bottom flask. These Heavy Wall Oval-Shaped Round Bottom Flasks are designed to provide superior durability and performance in laboratory settings. The oval shape enhances stability while the heavy wall design ensures resistance against...

Flasks are ideal for preliminary fermentation and bacterial growth studies Delong style neck and three side baffles Borosilicate glass type 1, class A Closures sold separately*

Dual angled sidearm fittings can be used for aseptically transferring medium into or out of angled sidearm spinner flasks or for sparging the medium with gases. Fittings are comprised of a PET insert with a fluorocarbon O-Ring and a polypropylene sealing cap. Two 316 stainless steel tubes, which...

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

Delong style Three baffle indents Designed to provide greater agitation of solution to improve oxygen or gas transfer when used with rotary or reciprocating shakers. Long neck reduces splashing and is designed for two-position polypropylene closures.

Used for volatile fatty acid test; ASTM D-1076. Fabricated from standard wall tubing throughout. Hose connections on still are size D; on condenser, size C.

SIBATA Class A, to contain, volumetric flasks meet ASTM E-288 Class A Specifications & USP Standards for volumetric glassware. These flasks feature machine-blown bodies and heavy-beaded, heavy-tubing necks which are tooled for standard taper stoppers. The graduation line is sharp and permanent;...

Rugged spherical reaction flask with Duran, flat, ground flange with O-Ring groove, for use with 6517 Quick Release Clamp. Each flask is supplied with one CAPFE O-Ring (PTFE encapsulated silicone O-Ring). Plain silicone O-Rings are also available. For reaction heads, see 6528, 6529 or 6530. For...

Manufactured from type 1 class A borosilicate glass and designed for culturing organisms requiring a large surface area-to-volume ratio. The flask is supplied with a GL45 blue polypropylene linerless screw cap and pouring ring. Dimensions: 200 x 157mm

KimCote® plastic-coated single neck flask with a SJ socket joint. Useful as rotary evaporator condensate collection flask or as a replacement for European designation KS 20/35.

Round bottom flask with four necks arranged 3 in-line and one at 90 degrees. 500ml and smaller flasks have angled side necks while larger sizes feature vertical necks. Available in heavy wall.

Calibrated both "to contain" and "to deliver" (top line). Graduation rings and marking spot are blasted onto glass. ground glass stopper is supplied with the flask. Designed from ASTM Specification E288, Class A unserialized requirements. Replacement ground glass stopper is...

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

Borosilicate glass filtration apparatus accomodates 25mm membrane filters. The new design utilizes a nylon Ace-Thred adapter to join the glass funnel, filter flask and fritted disc together. This design eliminates the need for the clamping device, stopper and base. The unit is easy to assemble,...