Best lab volumetric flasks, ranked

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AI-generated summary · updated August 30, 2026 · verify details before purchase.

1. 

   1 Best overall Corning

   Corning Pyrex 5640-1L Volumetric Flask

   ★★★★★4.8/5 $459.83 Only 1 left

   High-quality borosilicate glass flask with excellent accuracy and durability, trusted in labs worldwide.

   • High accuracy class A
   • Durable borosilicate glass
   • Easy-to-read graduation

   • Higher price

   View on Amazon manufacturer site
2. 

   2 Best value EISCO

   Eisco Labs 1000ml Volumetric Flask Class A

   ★★★★★4.6/5 $43.49

   Affordable Class A flask with good precision, ideal for general lab use.

   • Good accuracy
   • Budget-friendly
   • Sturdy construction

   • Minor variability in glass thickness

   View on Amazon manufacturer site
3. 

   3 Premium build Karter Scientific

   DWK Life Sciences DURAN 250ml Volumetric Flask

   ★★★★★4.7/5 $9.99 Only 2 left

   German-made borosilicate flask with precision ground stopper, excellent for sensitive applications.

   • High chemical resistance
   • Precision stopper fit
   • Long service life

   • Expensive for size

   View on Amazon manufacturer site
4. 

   4 Budget pick United Scientific

   United Scientific Supplies 500ml Volumetric Flask

   ★★★★☆4.5/5 $29.14

   Economical choice for educational labs, meets Class A tolerance standards.

   • Very affordable
   • Class A accuracy
   • Lightweight

   • Thinner glass
   • Less durable

   View on Amazon
5. 

   5 Small volume accuracy Chemglass

   Chemglass Life Sciences CG-901-01 100ml Volumetric Flask

   ★★★★★4.7/5 $50.65

   Excellent for precise small-volume measurements with robust construction.

   • High accuracy
   • Clear graduation
   • Durable

   • Limited size availability

   View on Amazon manufacturer site
6. 

   6 Large capacity Parco Scientific

   VWR 89000-000 2000ml Volumetric Flask

   ★★★★★4.6/5 $56.99 Only 1 left

   Large 2L flask perfect for bulk solution preparation, with reliable Class A tolerance.

   • Large volume
   • Certified accuracy
   • Well-made

   • Heavy when full
   • Higher price

   View on Amazon manufacturer site
7. 

   7 Student use Karter Scientific

   Karter Scientific 213U12 25ml Volumetric Flask

   ★★★★☆4.4/5 $28.21 Only 3 left

   Inexpensive set of 25ml flasks suitable for teaching labs and basic experiments.

   • Very low price
   • Good for teaching
   • Lightweight

   • Not precision grade
   • Glass may chip

   View on Amazon

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