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Lab Flasks - Blowout Sale! Save up to 69%


Blowout Sale! Up to 69% off on Lab Flasks at Dupen Labs. Top brands include Chemglass, Pyrex, Deschem, Nalgene, SEOH, Economy Glass, SPL Life Sciences, StonyLab, United Scientific Supplies, Kimble Chase Life Science and Research Products, & LABOY. Hurry! Limited time offers. Offers valid only while supplies last.



Chemglass CG-1542-09 Series CG-1542 Erlenmeyer Flask with 24/40 Outer Joint Size, 500 mL
Chemglass CG-1542-09 Series CG-1542 Erlenmeyer Flask with 24/40 Outer Joint Size, 500 mL
By Chemglass
In Stock
$26.30
$26.29

mpn: CG-1542-09,

4.7 out of 5 stars with 146 reviews
Erlenmeyer flask with a standard taper outer joint. Made in United States of America. Easy to Use and Reliable.24/40 outer joint size. 500mL. Sold as each. ...


Chemglass CG-1617-20 Glass 20mL +/- 0.08mL Flat Bottom Heavy Duty Wide Mouth Volumetric Flask, with PTFE Stopper, 128mm Height
Chemglass CG-1617-20 Glass 20mL +/- 0.08mL Flat Bottom Heavy Duty Wide Mouth Volumetric Flask, with PTFE Stopper, 128mm Height
By Chemglass
In Stock
$26.71

mpn: CG-1617-20,

4.5 out of 5 stars with 121 reviews
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 Cla...


Flask, FILTERING ~ PYREX® GLASS 1L
Flask, FILTERING ~ PYREX® GLASS 1L
By Pyrex
In Stock
$84.99

mpn: 5340-1L (1 EA),

4.1 out of 5 stars with 121 reviews
1000mL PYREX® Flasks have sidearm tabulations and are blown in special molds 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 st...


Chemglass CG-1276-20 Series CG-1276 Complete Distilling Receiver Flask, 250 mL Capacity, 24/40 Joint
Chemglass CG-1276-20 Series CG-1276 Complete Distilling Receiver Flask, 250 mL Capacity, 24/40 Joint
By Chemglass
In Stock
$42.27
$29.32
You Save: 31%

mpn: CG-1276-20,

4.6 out of 5 stars with 147 reviews
Cow type design has three receivers 45° apart. Condensers with lower drip tip inner joints will protrude into the spherical section, permitting the distillate to fall directly into the receiving flasks. Distribution adapter has a serrated connection...


Chemglass CG-1554-24 Series CG-1554 Pear Shaped Flask with 14/20 Outer Joint, 15 mL
Chemglass CG-1554-24 Series CG-1554 Pear Shaped Flask with 14/20 Outer Joint, 15 mL
By Chemglass
In Stock
$30.29

mpn: CG-1554-24,

4.2 out of 5 stars with 60 reviews
Pear shape HEAVY WALL flask with a standard taper outer joint. Made in United States of America. Easy to Use and Reliable.Pear shape. 15mL. Sold as each. ...


Deschem 1000ml,24/40,Glass Erlenmeyer Flask,1L,Conical Bottle,Lab Chemistry Glassware
Deschem 1000ml,24/40,Glass Erlenmeyer Flask,1L,Conical Bottle,Lab Chemistry Glassware
By Deschem
In Stock
$15.99

mpn: 231084570280, ean: 6971311075688,

4.5 out of 5 stars with 32 reviews
1000,24/40 Glass Ground Joint,Erlenmeyer Flask,conical Bottle,Various sized glass conical flask are supplied,for chemical,laboratory useBe made of borosilicate glassCapacity 1000mlBe Made From G3.3 Borosilicate Glass. Annealing Point ------560℃. Li...


Nalgene DS4101-1000 Polypropylene 1000mL Filtering Flask with Angled Tubulation
Nalgene DS4101-1000 Polypropylene 1000mL Filtering Flask with Angled Tubulation
By Nalgene
In Stock
$49.56
$44.50
You Save: 10%

mpn: DS4101-1000,

4.3 out of 5 stars with 68 reviews
This 1000mL polypropylene filtering flask is molded in one piece to withstand full vacuum to 30 inches Hg. The 45 degree angle of tubulation prevents tipping. Barbed adapter accepts 1/4 to 3/8 inch I.D. tubing. Flask is non-graduated and has an oval ...


SEOH Filtering Flask Borosilicate Glass 100 ml
SEOH Filtering Flask Borosilicate Glass 100 ml
By SEOH
In Stock
$10.95
$6.72
You Save: 39%

mpn: FG5340-100,

4.8 out of 5 stars with 41 reviews
Made from Borosilicate Glass with tubulation/side arm. Sturdy wall, and heavy rim. Accepts hose with 3/8" inside diameter. Texas Residents: Under Texas State Law, this product requires a Precursor Chemical/Laboratory Apparatus NAR-120 permit to ship ...


Economy Glass Filter Flask, Borosilicate, 500mL, Pack of 2
Economy Glass Filter Flask, Borosilicate, 500mL, Pack of 2
By Economy Glass
In Stock
$19.88

mpn: FL2403, ean: 0849230033897,

4.0 out of 5 stars with 66 reviews
Filter Flask, Borosilicate, 500mL, Pack of 2(2) FlasksEISCO Filter Flask, Borosilicate, 500mL, Pack of 2(2) FlasksPackage of 2 filter flasks.Note: The image is for the product family, not necessarily the size of the this product.High quality, borosil...


SEOH Flask Boiling FB Heavy Duty 1000ml 24/40 joint
SEOH Flask Boiling FB Heavy Duty 1000ml 24/40 joint
By SEOH
In Stock
$18.95

mpn: 43234-2662,

4.7 out of 5 stars with 55 reviews
Flask, Boiling FB Heavy Duty 1000ml 24/40 joint. Well crafted with a sturdy joint these flat bottom flasks, are made from durable borosilicate glass. The flask you see in the picture is precisely what you receive. These flasks are great for boiling a...


Chemglass CLS-1400-500 Series CLS-1400 Replacement Spinner Flask, Flat Bottom, 110 mm OD, 185 mm Height, 500 mL, Glass
Chemglass CLS-1400-500 Series CLS-1400 Replacement Spinner Flask, Flat Bottom, 110 mm OD, 185 mm Height, 500 mL, Glass
By Chemglass
In Stock
$136.28

mpn: CLS-1400-500,

4.9 out of 5 stars with 134 reviews
Replacement vessel is supplied with black phenolic, rubber lined caps for the 18mm side arms, polypropylene caps and pouring Rings for the gland-32 and gland-45 side arms.110Mm od. 185Mm height. 500Ml. Sold as each. ...


Chemglass CG-1506-16 Glass 25mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint
Chemglass CG-1506-16 Glass 25mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint
By Chemglass
In Stock
$21.45

mpn: CG-1506-16,

4.8 out of 5 stars with 14 reviews
Round bottom, HEAVY WALL single short neck flask with a standard taper outer joint. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Flasks with joint sizes other than those listed are available.Heavy wall. ...


SPL Erlenmeyer Flask, PC, 1000ml, Case of 4 (Sterile)
SPL Erlenmeyer Flask, PC, 1000ml, Case of 4 (Sterile)
By SPL Life Sciences
In Stock
$58.65
$55.99
You Save: 5%

mpn: 73000,

4.2 out of 5 stars with 139 reviews
Erlenmeyer Flask, PC, 1000ml, Case of 4Suitable for many types of suspension cultures (E.coli, plant callus, etc). Breakage resistant plastic flasks. Clear polycarbonat. Autoclavable. ...


StonyLab Glass 250ml Heavy Wall 3 Neck Round Bottom Flask RBF, with 24/40 Center and Side Standard Taper Outer Joint – 250ml
StonyLab Glass 250ml Heavy Wall 3 Neck Round Bottom Flask RBF, with 24/40 Center and Side Standard Taper Outer Joint – 250ml
By StonyLab
In Stock
$23.95

mpn: UK-RBF-3Neck-Glass-250ml, ean: 7426844814376,

4.2 out of 5 stars with 57 reviews
Why Choose StonyLab? 1. The StonyLab means high-quality products for reasonable prices. 2. We boast excellent customer service with a high satisfaction rating, with our team of representatives ready to assist you Monday to Friday, from 9:30AM to 5:30...


United Scientific FG4060-3000 Borosilicate Glass Flat Bottom Boiling Flask, 3000ml Capacity
United Scientific FG4060-3000 Borosilicate Glass Flat Bottom Boiling Flask, 3000ml Capacity
By United Scientific Supplies
In Stock
$58.56
$53.00
You Save: 9%

mpn: FG4060-3000,

4.3 out of 5 stars with 7 reviews
Borosilicate glass flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistant to chemical shock.3000ml capacity. Made of heat resistant borosilicate glass. Neck ID/OD: 40.5mm & 53.2mm. 24" Circumfer...


Kimble Chase Life Science and Research Products 28014-2 EA Volumetric Flask with Pennyhead Stopper, Class A, 2 mL, 0.75'' H, 3'' W, 4'' L, 1 fl. oz., Glass
Kimble Chase Life Science and Research Products 28014-2 EA Volumetric Flask with Pennyhead Stopper, Class A, 2 mL, 0.75" H, 3" W, 4" L, 1 fl. oz., Glass
By Kimble Chase Life Science and Research Products
In Stock
$32.99

mpn: 28014-2 EA,

4.6 out of 5 stars with 18 reviews
This is KIMAX flask with a single graduation ring blasted on the neck, calibrated to contain with a standard taper ground glass stopper is supplied and marking spots on all sizes meets customer requirement. Made in United States.Marking spots on all ...


Laboy HMF011337 Glass 1000 mL 2 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled
Laboy HMF011337 Glass 1000 mL 2 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled
By LABOY
In Stock
$27.98

mpn: HMF011337,

4.4 out of 5 stars with 11 reviews
This multi-neck flask has two standard taper ground joint on the Centre neck and the side angled neck. With 2 necks having the same joints Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high...


Chemglass CG-1012-01 Glass Inlet Adapter with 24/40 Inner Joint, 86mm Height
Chemglass CG-1012-01 Glass Inlet Adapter with 24/40 Inner Joint, 86mm Height
By Chemglass
In Stock
$17.79

mpn: CG-1012-01,

4.3 out of 5 stars with 118 reviews
Allows for flexible tubing to be connected to apparatus for introduction of vacuum or pressure. Hose connection has an O.D. of 10mm at the largest serration.24/40 inner joint. 86mm height. Inlet. ...


Chemglass CG-1402-16 Glass Buchner Filtering Funnel with Fine Frit, 60mL Capacity
Chemglass CG-1402-16 Glass Buchner Filtering Funnel with Fine Frit, 60mL Capacity
By Chemglass
In Stock
$47.40
$14.92
You Save: 69%

mpn: CG-1402-16,

4.9 out of 5 stars with 58 reviews
Funnel has a sealed-in glass fritted disc of the listed porosity. Useful wherever filter paper or membranes cannot withstand the chemical attack of the filtrate. Constructed with heavy wall stems and the top of the funnel is beaded for additional str...


Chemglass CG-1513-12 Series CG-1513 Kjeldahl Flask, Long Neck, 14/20 Outer Joint, 50 mL Capacity
Chemglass CG-1513-12 Series CG-1513 Kjeldahl Flask, Long Neck, 14/20 Outer Joint, 50 mL Capacity
By Chemglass
In Stock
$39.50
$37.39
You Save: 5%

mpn: CG-1513-12,

4.1 out of 5 stars with 8 reviews
Kjeldahl shape flask with a standard taper outer joint. Flasks with joint sizes other than those listed are available.Kjeldahl. Long neck. 14/20 outer joint. 50mL capacity. Sold in each. ...



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