stonylab Glass 1000ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation, 1L

Nice piece at a Good price. VERY well packaged. Amazon proof packing. Well done. NOTE: This did fail on me. Imploded and covered me in acid. Not sure why it failed. Please use caution in the lab. PPE always.

Great product

First things first, if you do decide to purchase this to use with a Buchner funnel you are absolutely going to need adapters or cones for your funnel. If you search "buchner funnel adapters" on here you should be able to find them. Glass arrived with no visible defects. Have used several times with a glorified aquarium pump and Buchner funnel for distillation and making tinctures. Works without issue, but the mouth of the flask is quite large and Buchner funnels tend to run "thin." To remedy this just buy adapters.

The smaller filter flasks are more sturdy- I always have a problem with stonylab glass breaking, it is not high quality. Over StonyLab, I recommend the following brands: 1. Pyrex - if cost is not an issue get pyrex glassware! 2. Laboy glass - very high quality almost as good as Pyrex, much cheaper, takes longer to ship from china, and selection may be limited. 3. ProGlass - on par with Laboy in terms of quality and price, this Chinese glass company is excellent, and has an extensive catalog of chemistry glass pieces. Shipping is usually free, but can take a while from China. 4. Esico - quality is slightly less than the others, but is still well above Stony lab in terms of durability. Tons of variety, and probably the best bang for your buck for chem glassware on Amazon.

On second day I had it, I dropped from about 4-5 foot and all it did was bounce. It didn't crack or chip anywhere. Ive used several times since then under pressure and vacuum and it's just fine. Well made and very thick glass and came a day early.

Good quality glass in a more convenient size for doing small extractions through a Büchner funnel.

I mean it works.

Good quality, but expensive! Packaged well for shipping.

Excellent packaging, Quality thick glass, for professionnel lab, high heat resistant since its for hot filtration during recrystallization. A+++ I recommend it. (Remember to buy a rubber seal to get good suction during vacuum for best results)

J'amais mesure de droite les argo dun morpion,il rentre dans vous.toujour nort a sud.je mesure les morpion clamonie coriel.les cheveux humain en porte.se pas bon les respire avec ou dans les vetment.

Hallo Freunde Wer so etwas braucht kann damit sehr zufrieden sein. Gruß walter Belohaubek 🌹

Perfetto per le mie esigenze

Nice flask.