Flasks, Glass, 250 mL
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PYREX Boiling Flasks
CorningCarefully designed and manufactured from borosilicate glass Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance Excellent chemical durability provides contamination-free results and long life…
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PYREXPLUS® Filter Flask
CorningProtective PVC coating for longer product life and safety Graduated to show approximate capacity Heavy wall Autoclavable (121 °C) and resistant to thermal shock Tubulation O.D. is 10 mm on sizes up through 1,000 mL and 12.5 mm on 2,000 and 4,000 mL sizes (tubing is non-coated).
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Full length 24/40 joint on all sizes except 50 mL, which has Standard Taper 19/38 joint Graduated scale indicates approximate volumes Extra large marking space
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Round bottom Short ring neck These PYREX® round bottom boiling flasks have short ring necks. These ring neck boiling flasks are precisely tooled for uniform stopper fit. The reinforced rim increases mechanical strength. These flasks are used in applications requiring rigid stoppering…
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The strength of these flasks has been increased appreciably through machine-blown bodies. Sealed, heavy-beaded, heavy-tubing necks are tooled for snap-cap fit. Graduation line is sharp, permanent and large; white block letters make the inscription easy to read. 1 mL and 2 mL sizes are…
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Magna Flex™ Microcarrier Spinner Flasks
DWK Life Sciences (Wheaton)The Wheaton Magna Flex Spinner Flasks feature a flex-type, bulb-shaped glass impeller that rotates from a fixed position above liquid level around an indentation in the base of the flask. Primarily designed for use with microcarrier cultures, this unique stirring system increases stirring…
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Jacketed Double Sidearm Celstir® Spinner Flasks
DWK Life Sciences (Wheaton)The Double-Sidearm Celstir with water jacket allows precise temperature control of its contents when operated with a recirculating water bath. The hose connectors accept 1/4 in (6.35 mm) ID tubing. This unit is made from Wheaton 33 low extractable borosilicate glass that conforms to USP Type I and…
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PYREX® Distilling Flasks
CorningSuitable for microchemical applications Side-arm on all sizes is approximately 77 mm below the top of the neck at an angle of 75° Adaptable for use with thermometer calibrated for 76 mm immersion 50 mL flask takes rubber stopper No. 1; 250 mL flasks, stopper No. 3; 500 mL flask, stopper No.…
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These Class A PYREX® volumetric flasks have machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for No. 9 PTFE color-coded keyhole stoppers. For replacement stoppers see No. 7630. The graduation line is sharp and permanent. Large white block letters make the…
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Shake Flasks
DWK Life Sciences (Wheaton)For use with orbital or reciprocating shakers Baffles improve aeration and mixing for microbial and bacterial cultures Break resistant lip for use with stopper, cotton plug or film cover Pinched neck design to reduce splashing on flasks with 4 baffles Autoclavable borosilicate…
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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.
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These PYREX® Erlenmeyer flasks have heavy tooled rims for maximum durability. The same baffle design as found on PYREX® Delong flasks promotes optimal and consistent solution agitation when used with flask shakers. Their uniform wall thickness provides the proper balance between mechanical…
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Short neck Heavy wall PYREX round bottom boiling flasks have full-length outer Standard Taper joints, but with shorter necks. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and…
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PYREX Heavy Wall Filter Flasks
CorningWithout tubulation blown in special molds, designed to give maximum mechanical strength Graduated to show approximate capacity Permanent white-enamel graduations and marking spots Sizes from 250 mL to 4,000 mL
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Plug-seal screw caps Graduated Neck opening: 29 mm Ideal for all media prep and storage needs. Easy to use with larger volume serological pipets.
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For user convenience, PYREX Erlenmeyer flasks are graduated to show approximate capacity. The 25- 50- and 125 mL flasks are satisfactory for use as a weighing bottle. Erlenmeyer flasks come with a PYREX Standard Taper stopper.
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PYREX® VISTA™ Filtering Flasks
CorningMicro Filtering Flasks These PYREX® VISTA™ micro filtering flasks are recommended for microchemical use. The vacuum hose is attached to the flask's sidearm. A funnel is inserted into the neck of the flask through a ground joint or rubber stopper. The applied vacuum facilitates the…
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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.
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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…
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These PYREX® Erlenmeyer flasks with phenolic screw caps are ideal for use as a shaker flask or for mixing, media prep and storage needs. Impact resistant caps with 24-410 GPI threads are equipped with cemented-in, inert white rubber liners which are resistant to steam sterilization. Their…
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Calibrated "to contain" at 20°C Accuracy tolerances approximately twice those specified for Class A
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Similar to 4997B13 series, but with protective PVC coating Coating promotes longer product life and greater safety and helps contain glass and contents should breakage occur Autoclavable and microwaveable to 121°C (250°F) Resistant to thermal shock With PYREX Standard Taper stopper
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PYREX Erlenmeyer Shaker Flask
CorningDelong style Extra deep baffles These PYREX Delong style shaker culture flasks have three extra deep baffles designed to provide greater agitation of solutions to improve oxygen or gas transfer when used with rotary or reciprocating shakers. The long neck reduces splashing and is…
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Baffles enhance aeration and agitation of contents of the flask. Unique impeller design ensures optimal stirring. Sidearm designs permit easy access of 25 mL and 50 mL pipets. Reusable Glass Spinner Flask is designed to improve cell growth by keeping the culture media moving and…
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Iodine Flasks
CorningFor the determination of the iodine number of oils, fats and waxes by the Wijs and Hanus methods Flaring, funnel-shaped lip and Standard Taper 22 stopper
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Permanent graduation line Machine-blown bodies Heavy-beaded, heavy-tubing necks are tooled for polyethylene stopper Stopper is made with a closed bottom and is of linear, high-density polyethylene to conform to Standard Taper stopper dimensions
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These PYREX® long neck shaker culture flasks are basically Erlenmeyer flasks to which a long straight, rimless neck of heavy tubing has been added. The longer necks reduce the amount of splashed solution reaching the closure. They are ideal for shaker cultures. Their uniform wall thickness…
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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 E-1403.
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These PYREX® wide mouth Erlenmeyer flasks are especially recommended for use as titration flasks and are designed with heavy duty rims to reduce chipping. For convenience, these flasks are graduated in durable white enamel to show the approximate capacity and have an extra large marking…
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Calibrated to Class A ASTM E-542 and E-288 Supplied with a certificate of identification Traceable to NIST standards The graduation line is sharp and permanent. Large white block letters make it easy to read. Supplied with a Standard Taper stopper.
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Double Sidearm Celstir® Spinner Flasks
DWK Life Sciences (Wheaton)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 …
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PYREX Vacuum Filter Flask
CorningFor use in vacuum filtration applications Withstands full vacuum (to 30” Hg) With hose barb for 1/4” I.D. tubing