Flasks

Photo of Vinyl Coated "C" Shaped Open Lead Rings
Rings fits neatly around the neck of filtering flasks with side-arm tubing connections. No need to disconnect the tubing and possibly compromise the process. The open ring is made of lead and covered with Vikem® vinyl coating to protect glassware. It is flexible enough to be pulled apart to accommodate a wider vessel. Available in four diameter/weight combinations to meet the needs in your lab.
Photo of Vikem® Vinyl Coated Lead Rings
Vikem® Vinyl Coated Lead Rings stabilize glassware immersed in water baths reducing floating, breakage and chemical spills. The bright red Vikem® vinyl coating is chemical-resistant and will not scratch flasks.
Photo of Blue Mild Steel or Stainless Steel Dewars with Glass Inner Flask
For the storage and transportation of liquid gases and solid CO2. Fully silvered borosilicate glass inner flask. Insulated and vented lids. All standard dewars are fitted with a comfortable swing-over safety handle. Lids fitted with fixing clips.
Photo of Unbreakable Stainless Steel Dewar Flasks
A range of unbreakable stainless steel dewars resistant to vibration, impact or shock. Safe and easy to use for the storage of liquid oxygen, liquid nitrogen and other low temperature liquid gases. Supplied with lids and detachable carrying handle.
Photo of Polypropylene Filtering Flasks with Side Arm. Bel-Art
Polypropylene flask has side arm at 45° degree downward angle to prevent tipping. Arm accepts flexible tubing from 3/8" to 1/2" I.D.
Photo of Corning 4100 PYREX® Short Neck Flat Bottom Boiling Flasks with 24/40 Standard Taper Joint

These PYREX® flat bottom boiling flasks have full length outer 24/40 TS 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 greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C. Corning Adapter Nos.

Photo of Corning 4080 PYREX® Long Neck Florence Boiling Flask with Flat Bottom and 24/40 Standard Taper Joint

These PYREX® flat bottom boiling flasks have full length outer 24/40 joints on long 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 greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C. Corning Adapter Nos.

Photo of Corning 4060 PYREX® Long Neck Boiling Flasks with Flat Bottom and Tooled Neck

These PYREX® flat bottom boiling flasks have long necks with tooled mouths and use rubber stoppers for sealing. The 12L size has a short neck. 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 shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C.

Photo of Corning 4965A PYREX® Three Neck Distilling Flasks with Angled Necks and 24/40 Standard Taper Joints

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

Photo of Corning 4280 PYREX® Long Neck Boiling Flasks with Round Bottom and Tooled Neck

These PYREX® round bottom boiling flasks have long necks with tooled mouths and use rubber stoppers for sealing. 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 shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C.

Photo of Corning 4260 PYREX® Short Ring Neck Boiling Flasks with Round Bottom

These PYREX® round bottom boiling flasks have short ring necks and are designed to be used with rubber stoppers. 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 and as wash bottles in routine lab washing. 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 shock resistance.

Photo of Corning 4320 PYREX® Short Neck Boiling Flasks with Round Bottom and 19/38 Standard Taper Joint

These PYREX® round bottom boiling flasks have full length standard taper outer 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 greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C. Corning Adapter Nos.

Photo of Corning 4950 PYREX® Three Neck Distilling Flasks with Vertical Necks and 24/40 Standard Taper Joints

These 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

Photo of Corning 4965B PYREX® Three Neck Distilling Flask with 19/22 Center Vertical and Side Angled Necks with Standard Taper Joints

These 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.

Photo of Nalgene 4150 HDPE Dewar Flasks with Lid and Handle

Nalgene 4150 High Density Polyethylene (HDPE) Dewar Flasks with Lid and Handle are for storing samples in liquid nitrogen, dry ice-solvent mixtures or ice water. High density polyethylene base and HDPE cover with polyethylene coated handle for strong, shatterproof performance. Double-walled sides and CFC-free foam urethane insulation minimize heat leakage so samples stay cold longer. Pour spout and bottom grip area for ease of removal of used liquids. Vented, insulated cover allows for vapor escape but maintains sample temperature. Can be used from -196°C to +100°C. 

Photo of Corning 4321 PYREX® Short Neck Boiling Flask with Round Bottom and 29/42 Standard Taper Joint

These PYREX® round bottom boiling flasks have full length outer 29/42 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 greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C. Corning Adapter Nos.

Photo of Corning 4320B PYREX® Short Neck Boiling Flask with Round Bottom and 19/22 Standard Taper Joint

These PYREX® round bottom boiling flasks have full length outer 19/22 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 greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C. Corning Adapter Nos.

Photo of Corning 4320A-50 PYREX® 50mL Short Neck Boiling Flask with Round Bottom and 24/40 Standard Taper Joint

These 50mL PYREX® round bottom boiling flasks have full length outer 24/40 joints, but with shorter necks. They are carefully designed and 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 chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C. Corning Adapter Nos.

Photo of Corning 5340 PYREX® Heavy Wall Filtering Flasks with Sidearm Tubulation

These flasks with tubulation are blown in special molds in shapes designed to give maximum mechanical strength. For convenience the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers. Tubulation O.D. on sizes up to 1000mL is 10mm. Tubulation O.D. for 2000mL and 4000mL is 12.5mm.

Photo of Corning 4995 PYREX® Wide Mouth Erlenmeyer Flasks with GL45 Screw Caps

These wide mouth PYREX® Erlenmeyer flasks have a large, 29mm neck opening which makes it easy to use larger volume serological pipets. Ideal product for use as a shaker flask or for media prep and storage needs. They also have a single size linerless, one-piece autoclavable orange polypropylene plug seal caps with GL45 threads and drip-free pouring rings.