Lab Flasks

Round bottom, HEAVY WALL, four neck flask with standard taper outer joints on the center and 20º angled side necks.

Nephelo culture flask with side port and angled side arm cuvette for standard Nephelometers and spectrophotometers. Supplied with 38-430 phenolic top cap and 18-415 clean-out port cap.

KIMAX boiling flask designed from ASTM Specification E1403, Type II, Class 3 requirements.

These borosilicate glass Erlenmeyer flasks have narrow mouths, tooled top finishes, and graduations. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more...

Capacity 1000 mL, 108 mm o.d. x 165 mm high Precision-formed borosilicate glass flask for determining the relative dissolution characteristics of drugs in capsule or tablet form. Flasks are suitable for use with most existing equipment.

These 100mL PYREX(r) round bottom boiling flasks have long necks with tooled mouths and take a rubber stopper. They 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...

These flasks, also called vacuum flasks, have a side-arm with a 45° downward angle to prevent tipping.   Reduce broken glassware with this flask constructed of FDA grade polypropylene Side Arm accepts flexible tubing from 3/8" to 1/2" I.D. 1000 ml capacity

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.]

2L PC Erlenmeyer Flask Ideal for shaker culture applications 2L H-Efficiency Erlenmeyer High-efficiency, large-volume culture flasks allow cells to show strong viability with large expression amount of proteins in the culture of mammalian cells and insect cells.  During the culturing process,...

Amber stained volumetric flasks are manufactured per ASTM E-288 Class A Serialized glassware specifications. Calibrated to contain (TC), these flasks feature white enamel printing and diamond etched graduation line. For light sensitive materials. Specifications: Type 1 Borosilicate Glass Size: 50ml...

Replacement vessel is supplied with black phenolic, rubber lined caps for the 18mm side arms, polypropylene caps and pouring rings for the GL-32 and GL-45 side arms.

Specially designed for laboratories where extra security against contamination is necessary Sterile Cap contains 0.22 mm hydrophobic filter, which prevents wetting and bacteria from growing through membrane while allowing quick, stable buffering in aCO₂ incubator. Filter membrane has a...

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

With long neck and standard taper 24/40 outer joint. Ideal for various laboratory applications, this flask features a single neck and a flat bottom design to ensure stability during use. It is made from high-quality, durable glass that can withstand different laboratory conditions. This product is...

SYNTHWARE round bottom, heavy wall, four neck flasks with standard taper outer joints on both the center neck and the angled side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.

Made of high quality borosilicate 3.3 glass Includes polyethylene snap cap Single graduation line for precise dilution and preparation Class B as per ASTM-E288 Volumeteric flaks made of durable borosilicate 3.3 glass with a single graduation mark. Fitted with a chemically-resistant polyethylene snap...

Flask have wide-mouth design for easy pouring and printed scale of approximate volumes Specifications: Material: Polypropylene Includes: Polypropylene Screw Cap Size: 250mL Volume: 250x50mm Thread: 52mm Case Quantity: 6

Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique Flat Bottom Interior permits the use of a standard stir bar. Large permanent white letters make the capacity clearly visible. Flasks are calibrated "To Contain" at Class A tolerances, per ASTM E288...

Replacement evaporator flask for Buchi rotary evaporators. Pear shaped heavy wall with a standard taper single neck. Safety coated.

With a unique design for the manipulation of air-sensitive and moisture-sensitive compounds Features a modified Kjeldahl shape that facilitates heating, stirring and solvent stripping without impairing ease of liquid and solid transfer The bottom of the flask is shaped to fit Kontes oil spherical...

Similar to 5028M40 series, but aluminum base extends up to mouth of flask Without plastic mesh

TriForest Erlenmeyer Shaker Flasks are manufactured with virgin, optically clear, non leaching LEXAN® Polycarbonate resin that retains clarity after gamma radiation. The flasks are certified pyrogen free, DNase/RNase free, ideal for cell cultures, microbial cultures, plants, media preparation,...

Calibrated "to contain"; tolerances are within Class B specifications With marking spot and polyethylene snap cap

Made of high quality Borosilicate glass Includes 4 pieces 1000ml flask, 300ml funnel, 47mm vacuum base with sintered disk and 47mm clamp Designed to maximize flow and reduce foaming Sintered disk, which acts as a filter is G2 porosity, with a 40-90 micron range This filtration assembly is used for...