Lab Flasks

Developed for the precision and accuracy required in laboratory settings, this spring clamp is specifically designed to work with 1000 mL Erlenmeyer flasks. This high-quality tool ensures stability and safety, securely holding the flask during experiments or procedures. The clamp is easy to use, and...

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...

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.

These convenient, ready-to-use tissue culture flasks are coated with extra-cellular matrix proteins (ECM) or synthetic peptides. Coating provides an inert scaffolding that helps regulate cell growth and proliferation. It simulates the cells' natural environment, which facilitates adherence,...

Sterile Flask of optically clear polystyrene, tissue culture treated Plug seal screw cap of polyethylene Incorporate a 0.2 micron microporous membrane filter into a standard Corning® Falcon® plug seal cap to prevent contamination while providing improved consistency in gas exchange over...

Optimizing spheroid formation Allows cells to grow in suspension with virtually no cell attachment Supports many different cell types and their ability to generate spheroids Enables consistent, repeatable cell growth Growing 3D cancer cultures Minimizes variability and supports the consistent...

KimCote® plastic-coated flask with a single graduation ring blasted on the neck, calibrated to contain. A ground glass stopper is supplied. Marking spots on all sizes. Designed from ASTM Specification E288, Class A unserialized requirements.

Three standard baffle indents to improve agitation during shaking Long neck reduces splashing that could reach the closure Neck accommodates polypropylene and stainless steel closures Durable white ceramic marking spot Manufactured from ASTM Type I, Class A borosilicate

Flasks are designed for culturing organisms that require a large surface area to volume ratio. Available with a plain 59mm ID neck, 38mm OD Delong style neck or GL-45 screw neck supplied with a vented cap.

RAY-SORB Processed Glass with No Stopper Pipet access is easy with wide-mouth, volumetric flasks Superior strength, durability and safety from heavy, uniform walls Quick identification with large, permanent, easy-to-read markings Flat interior bottoms for stirring with standard stir bars Accuracy -...

10cm² gas permeable membrane surface area with 40 ml media capacity. Expand 5 million cells into 200 to 400 million cells in about 12 days with only two exchanges of medium.

Overflow measuring flasks are a simple and very precise way to conform to fixed volume instructions. They are available in different sizes for different measuring ranges with the respective sample volumes.

Round bottom and long neck 30 mL size has square-cut mouth for multiple micro digestions; mouths of larger sizes are tooled for uniform rubber stopper fit. 30 mL flask conforms with ASTM Standard E 147 for microchemical apparatus; 100 mL through 800 mL flasks can be used in ASTM E 258 procedure.

Used for limit test for arsenic as described in European Pharmacopeia, 1997, page 51. Complete consists of 125mL conical flask with 24/40 joint, a capillary chimney with a pulled tip below 24/40 joint at bottom, #5 O-Ring joint at top with hooks for 3/4" springs, and an adapter tube with #5 O-Ring...

These 1L PYREX® three vertical neck flasks have two side necks with 24/40 outer Standard Taper joints and a center neck with a 24/40 Standard Taper joint. All of the necks are at the same height

Shake style culture flask with long style straight neck, accomodates either plastic or stainless steel closures. Without baffles.

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 test-tube...

This high-quality short neck flask is designed to support a wide range of laboratory procedures, particularly those involving cell culture. The short and wide neck offers easy access for the transfer of cells and other materials. Constructed with durable materials, it is capable of withstanding...

Made of high quality, heavy duty, borosilicate 3.3 glass Class A tolerance conforms with ISO 1042 standards Includes calibration certificate from ISO accredited testing lab Fitted with an interchangeable polyethylene stopper Features a single graduation mark for precise dilution and preparation...

These PYREX(r) pear-shaped boiling flasks have full length outer 24/40 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....

Available with treated surface, suitable for adherent cell culture, suitable for suspension cell culture Available in three sizes: 25, 75, and 175 cm² with a flat surface (bottom of flask) Mouth design that gives easy access to entire surface of flask Graduated on both sides Includes white...

Solid Standard Taperglass stopper and hexagonal base Calibrated "to contain" at 20°C, in accordance with ASTM Standard E 237 Made to the following tolerances: 1 mL: ±0.01 mL; 2 mL: ±0.015 mL; 5 and 10 mL: ±0.02 mL; 25 mL: ±0.03 mL 1, 2 and 5 mL flasks take Standard Taper 8 stopper; 10 and...

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. Their excellent...

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 controlled to provide balance between thermal expansion and mechanical strength for greater shock resistance. The round...