SKU: 6238367092

Heathrow Scientific 2306A-1000 Volumetric Flask, Class A, Glass Stopper, 1000 mL, 2/pk

Sale price$68.09 Regular price$75.65
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Heathrow Scientific 2306A-1000 Volumetric Flask, Class A, Glass Stopper, 1000 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: 6238367092

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ChotoKnox
Chelsea, US
★★★★★ 5
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My husband lives in these comfortable performance quarter zips by Maelreg! He says they’re warm in the cool months, they fit great, can be worn with just about any slacks, joggers, or shorts. They come in many different colors and they fit the tall guys like my husband, whose 6’4” He orders 2XL.
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Reviewed in the United States on April 30, 2026
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Jordan
Lake Worth, US
★★★★★ 5
Love them!
Color: Lavender Melange, Size: X-Large
True to size I wear a 2XL they fit great material is nice. perfect for the golf course or business casual. I have 4 different colors and always get compliments! Will definitely get more.
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Reviewed in the United States on May 10, 2026
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Dopy Doorite
Lexington, US
★★★★★ 3
It's different. Not bad, but nothing special.
Color: Navy Melange, Size: XX-Large
The fit is good. I'd say medium weight. It's not quite as light as some of the microfiber pullovers I like to wear playing golf, and not quite as flexible. I'm not sure I like the decorative stitching. The stitching on the shoulders and along the sides makes it look like it's on inside out. Also, the material has kind of a paper feeling to it (for want of a better description). Overall it's decent looking, not a bad fit, not a bad feel, it just doesn't 'wow' me. Unless the price is better than it is now, and already having one, I doubt I'd buy it again. Most of this is just my own opinion based on personal preference. The overall manufacturing quality seems very good. Someone else might think this is the nicest pullover they own.
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Reviewed in the United States on June 3, 2025
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P. Konn
Natrona Heights, US
★★★★★ 5
Excellent quality and value
This is my 4th Maelreg 1/4 zip shirt. I've lost a lot of weight and looking for clothing that fits well and doesn't feel like a shirt from China. I found that the quality and fit are excellent. The fabric is soft, well made and slightly heavier than other 1/4 zips I've purchased on Amazon. The weight of fabric gives a quality feel. The styles of Maelreg pullovers are great. I get a lot of compliments on these shirts.
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Reviewed in the United States on January 8, 2026
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Douglas Cooke
Pawtucket, US
★★★★★ 5
MAELREG Clothing Looks Great!
Love this quarter zip. MAELREG makes some comfortable, sharp looking clothing. Their golf apparel is fantastic. The value is worth it. Their shirts are true to size. I am 6', 215lbs and wear an XL, which fits nicely.
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Reviewed in the United States on February 16, 2026

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