SKU: 42625785176

Heathrow Scientific 2306A-500 Volumetric Flask, Class A, Glass Stopper, 500 mL, 2/pk

Sale price$49.73 Regular price$55.26
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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

Heathrow Scientific 2306A-500 Volumetric Flask, Class A, Glass Stopper, 500 mL, 2/pkThese volumetric flasks feature machine blown bodies and heavy beaded, heavy tubing necks that are tooled for standard taper glass stoppers. Our flasks are constructed of premium borosilicate glass, ensuring exceptional clarity and resistance to chemical interactions. Each volumetric flask is supplied with a standard taper glass stopper which provides a leakproof seal. This airtight seal not only preserves the integrity of your samples but also

These volumetric flasks feature machine-blown bodies and heavy-beaded, heavy-tubing necks that are tooled for standard taper glass stoppers. Our flasks are constructed of premium borosilicate glass, ensuring exceptional clarity and resistance to chemical interactions. Each volumetric flask is supplied with a standard taper glass stopper which provides a leakproof seal. This airtight seal not only preserves the integrity of your samples but also enhances the reliability of your volumetric measurements.

Features:
Made of premium borosilicate glass with a low coefficient of expansion
Designed “to contain” with a temperature of calibration at 68°F (20°C)
The graduation line is sharply defined and of uniform width
Each flask has a large marking square and includes a glass stopper
Wide range of sizes available (5 mL to 2000 mL)
Meets ASTM E-288 Class A specifications & USP standards for glassware

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42625785176

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4.9 ★★★★★
Based on 24 reviews
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Verified Purchase
Christina Schafer
Natrona Heights, US
★★★★★ 5
Love it
Good quality right size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
J
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jmumv
Waukegan, US
★★★★★ 5
For tough chewers
This is great for my large puppy. It has taken a beating, and I trim off any hanging or loose pieces of rubber. It has survived the test of time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2025
D
Verified Purchase
Dennis Smith
Carnegie, US
★★★★★ 4
We call it the brick.
Great chew toy. Not really made for playing fetch. It’s large and very heavy. Good construction.
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Reviewed in the United States on February 26, 2025
J
Verified Purchase
Jenni Thomas
Carnegie, US
★★★★★ 5
Pittie Perfect
My 75 pound pittie loves this toy! I put baby carrots as the treats and keep her occupied and happy!
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Reviewed in the United States on January 18, 2026
M
Verified Purchase
Michele
Omaha, US
★★★★★ 3
Indestructible but hard to get treats out
We have a power chewer and have had the black Kong products for a long time. I opted to try this new design however, the shape makes it difficult for our dog to reach the treat. We have stopped using it since I had to keep digging the treat out for her. : ) The black Kong shaped like a pear works much better for her. Giving this 3 stars overall because she can't really use it well.
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Reviewed in the United States on April 8, 2024

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