Your cart is empty.
Your cart is empty.These 500 ml Pyrex Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable white enamel. An extra large marking space is also provided.
Camille
2025-09-05 13:10:00
The review says it all, real borosilicate not tempered glass, holds up well whether boiling or using a stir bar. Quality.
jeff bowden
2025-08-29 21:32:37
Excellent flask. I recommend grabbing the correct stopper which is a 7.5. On the one hand the yeast need oxygen, but on the other hand, you need to know they are working, which is best observed through the air lock. Try taking a reading when your flask is full of sludge. THis is pretty sturdy as I dropped it into the sink with no damage. The mouth won't quit fit into a fastrack, so I use something like a hydrometer to keep it from sliding around as it dries.
wc
2025-08-06 11:03:24
Bought several flasks, beakers and graduated cylinders of various brands in recent months. All are usable, but the quality of this flask stands well above its peers. Nice heavy wall, glass surfaces are smooth to the touch. Volume markings are within tolerance and useful.
aundrea fuller
2025-06-27 16:54:17
No complaints. Not thin withstands heat good purchase
Nathan Holmes
2025-06-15 14:32:44
this flask is a little thicker than a coffee pot glass, the rim is heavy duty like the description states. the flask is 7" tall the interior opening of the mouth is 1-3/8" the bottom of the flask is 4" diameter, the flask was well protected in the packaging with 2 layers of bubble wrap and packing paper around that, the item was not chipped or damaged in any way, and was very clean. i looked for finger prints on the flask when i opened the package and there were none, great price for a great flask
Gerald Del Campo
2025-05-30 17:31:30
For the price I didn't think it would be a quality item. I was wrong. This is exactly what I was looking for and the price was really good. Thinking about buying a couple more.
JSintheStates
2025-05-29 17:17:49
The flask I got with my order was marked Bomex, not Pyrex. This is one of the best erlenmeyer flasks I've ever seen! Extra-thick walled, much better than Pyrex or Kimax! xUmp is a fine vendor! If you're looking for a novel wine carafe for that science geek friend of yours, this is it! (You heard it here first!)
Neko
2025-05-05 12:10:34
I ordered these flasks for the purpose of cosplay, not scientific research. Unfortunately one of them had a huge crack which caused some liquid (powerade) to leak out and stain a bunch of my things. The other two did fine though
Ulises Chávez Ojeda
2025-04-01 18:58:52
Buen producto y rapidez de envÃo
S. McGillivray
2025-03-31 16:59:28
This is a well made Erlenmeyer flask. Pyrex makes good quality glass, well worth the extra few dollars over other brands.
Janet L.
2025-03-02 14:50:18
Really good product for a decent price.
Normandy
2024-12-18 13:27:41
Good flask, but does not include stopper as described.
x-x-x-x-x
2024-11-30 11:12:16
did no come with rubber stopper. If you have a high end dollar store or fancy soap making shop you can get these off brand onesmuch cheaper. won't pay so much for a single beaker ever again
Recommended Products
$10.96
$ 5 .99 $5.99
$22.49
$ 10 .99 $10.99
$22.99
$ 10 .99 $10.99