SKU: 23117992312

Heathrow Scientific 2303A-100 Volumetric Flask, Class A, Snap-Cap, 100 mL, 4/pk

$43.79 $48.66
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Heathrow Scientific 2303A-100 Volumetric Flask, Class A, Snap-Cap, 100 mL, 4/pkThese volumetric flasks feature machine blown bodies and heavy beaded, heavy tubing necks that are tooled for snap cap fit. Our volumetric flasks are constructed of premium borosilicate glass, ensuring exceptional clarity and resistance to chemical interactions. Each flask is supplied with a snap cap which helps protect against breakage and spills. Features: Made of premium borosilicate glass with a low coefficient of expansion Designed to contain

These volumetric flasks feature machine-blown bodies and heavy-beaded, heavy-tubing necks that are tooled for snap-cap fit. Our volumetric flasks are constructed of premium borosilicate glass, ensuring exceptional clarity and resistance to chemical interactions. Each flask is supplied with a snap cap which helps protect against breakage and spills.

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 snap cap
Wide range of sizes available (10 mL to 1000 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: 23117992312

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4.5 ★★★★★
Based on 30 reviews
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Product Reviews
K
Verified Purchase
Kim O.
Phoenix, US
★★★★★ 5
Way fluffy, good support
Size: Sapphire Queen
This pillow is way fluffy. It does fit into a standard pillowcase with a little tugging and stuffing. Worth it though, as it’s cool and provides more support than a usual side sleeper pillow. I’m not using the extra stuffing that comes with it as the firmness is fine for me right out of the box.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
A
Verified Purchase
Andrea Pendergraff
Los Angeles, US
★★★★★ 5
Great for side sleeper
Size: Sapphire King
I am loving this pillow. I waited a few months to see how I would feel about it, because I definitely did not like solid foam pillows previously. I’m a side sleeper, and my pillows were discontinued from a different bedding company. I tried a few others in the interim and was not happy with the support for my neck. Tried this one and I really love the shredded foam. It supports my neck and my head, it’s comfortable. It is movable if I need support in a certain position. It has extra fill if needed. Super happy with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
D
Verified Purchase
Danette Popovich
Whiting, US
★★★★★ 5
Best Pillow Ever
Size: Sapphire Queen
Im in love...better then high end pillows and at a fraction of the cost. These are the only pillows I will ever buy again!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 3
Not cooling
Size: Sapphire Queen
We have waited to give a review. These 2 pillows we purchased based off the good reviews and that it states has cooling effect. Well a good point it has is the blend of stuffing. Also the ability to remove or add for your comfort. The softness/firmness is just right once you figure out your comfortable mix. However with having foam and poly blend, there is no cooling. Those tiny blue specs do nothing but add color to stuffing. Both my husband an myself wake up because our head is hot. Moving around alot helps with that but doesn't offer a restful sleep. I do like that it has a cover over the pillow so you have 2 zippers to go through to remove stuffing. This prevents waking with foam all over your bed. Overall I would have given a better review if actually offered the cooling effect. I could have saved money an just purchased the cheaper pillow they offer.
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Reviewed in the United States on December 29, 2025
S
Verified Purchase
Sigewulf
Battle Creek, US
★★★★★ 5
Tired of bad sleep try this pillow :)
Size: Sapphire Queen
Never owned a nice or expensive pillow finally after a good 25 years of super cheap pillows finally decided to try a nice one and see if there is a big difference and see what all the woot is about anyways in my opinion I am a side sleeper and I now just use this instead of multiple pillows and I can safely say it works very well seems too cool a little and is very comfortable plus bonus they give you extra fluff if you want to add more or replace but straight out of the box was absolutely perfect for sleeping I am insanely picky about it will ABSOLUTELY BUY THIS AGAIN 🥰🥰🥰 firmness absolutely perfect as is
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026

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