Lab Flasks

Flask has a funnel top with a standard taper outer grind to accept a 24/40 long neck stopper allowing the handle to extend above the liquid seal. Used in ASTM D29 and ASTM D555. Available complete with stopper or flask only.

These 500mL PYREX® three neck flasks have two angled side necks at the same height with 19/22 Standard Taper outer joints and a center neck with a vertical 19/22 Standard Taper joint.

These sterile PETG (polyethylene terephthalate glycol) Erlenmeyer flasks are used for mixing, containing, and storing solutions. PETG flasks are very clear and have easy to read graduation marks. These are shatterproof and are an ideal alternative to glass. Temperature range is -40 to 70° C (-40...

Biox Tissue Culture Flask, Vent Cap, Sterile. Ideal for laboratory applications, BioX Tissue Culture Flasks are designed to provide a sterile and controlled environment for cell growth. These flasks are built with precision to ensure a consistent and reliable cell culture environment. The flasks are...

Two-neck heavy wall flask with Standard Taper outer joints Side neck is angled Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

SYNTHWARE modified Schlenk flask with a standard taper outer joint and a 0-4 mm high vacuum valve in the side arm. The valve has a PTFE o-ring at the tip. The Kjeldahl shape permits easy transfer of liquids and solids. The lower portion of the flasks fits standard heating mantles to facilitate...

These Volumetric Flasks are made from quality borosilicate glass, and come fitted with a PTFE stopper. Volumetric flasks are used to contain a very precise volume of liquid or other substance at a particular temperature. Class B. PRODUCT WARNINGS WARNING: This product can expose you to chemicals...

Silicone bumpers slip easily onto any volumetric flask. In the event of a flask being accidentally tipped over, the wide bumpers cushion the neck from hitting the table surface. Color coded and available in five different sizes. Wide design to cushion flasks if tipped over Made of high-quality...

These Volumetric Flasks are made from quality borosilicate glass, and come fitted with a ground glass stopper. Volumetric flasks are used to contain a very precise volume of liquid or other substance at a particular temperature. Class B. PRODUCT WARNINGS WARNING: This product can expose you to...

Available in various sizes, these borosilicate glass round bottom flasks have three vertical necks with Standard Taper outer joints. The side necks are 180° apart.

These PYREX(r) 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 mechanical strength for...

SYNTHWARE Schlenk storage tube with a high vacuum valve. The valve has a PTFE O-ring at the tip and a PTFE wiper to protect the O-rings on the shaft. Valve is used to control liquid or gas flow into the vessel.

KimCote® plastic-coated single neck flask with a outer joint designed for easy recovery of reaction products. Total contents are accessible with a spatula or policeman. Lower portion fits standard heating mantles. Even wall thickness and minimum runout make these flasks ideal for use with Rotary...

LD Series Liquid Nitrogen Dewars are designed for storage of small quantities of liquid nitrogen. High-strength aluminum shell is both durable and light-weight. Super insulation provides advanced thermal protection. Neck tube joins inner and outer container, providing maximum durability and minimum...

Vacuum-gas plasma tissue culture treatment provides consistent cell attachment, spreading, and growth    Choose standard tissue culture, Corning® Primaria™, or not tissue culture-treated polystyrene growth surfaces to meet your individual cell culture requirements   ...

SYNTHWARE round bottom boiling flasks with spherical socket joint. All sizes are heavy wall design and are hand blown from borosilicate tubing to ensure uniform wall thickness. These flasks can be used as replacements for the collection flask on rotary evaporators.

Flat ground flange for use with all Reaction Flasks that have a 100mm (4") Duran ground mating flange. Supplied with three in line ground joints and one or two 90 degree joints. For thermometer or probe adapter, see our 5028 series. For clamp, see 6517.

Protective 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).

Durable, machine-blown body. Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A ground glass stopper is included. Meets Class A specifications per ASTM E-288. Batch Certified. Our volumetric flasks feature QR code integration to facilitate quick and...

Trypsinizing flask with beaded neck and long side baffles. Ideal for converting homogenous tissue samples into cell suspensions by digestion of connective tissue. Heavy beaded neck accepts either cotton plugs or stoppers. The extra-deep baffles enhance vigorous agitation.

This borosilicate glass heavy wall filtering flask can be used with FILTERWARE® Filtration Apparatus (LG-1755). Supplied with a silicone stopper with 9/16" hole and a #2 hose connection, the 4000mL flask has 1/2" connections.

These corrosion- and leach-resistant flasks are excellent for rotary evaporation and distillation of high-purity chemicals. They are manufactured from PFA (a perfluoroalkoxy polymer) for excellent resistance to heat and chemical contamination, as well as smooth surfaces that greatly simplify...

Three piece Erlenmeyer Flask set made of high quality, heavy duty, borosilicate 3.3 glass. Includes three, narrow neck flasks with 500ml, 1000ml & 2000ml capacities. Flasks feature white, printed graduations, and beaded rims. Uniform, thick walls provide excellent strength against breakage. Set is...