Glass Filtering Flask with Upper Tubulation, 2000ml (Single)

Excelente cumplimiento, calidad y empaque

The glass is very thick, and I'm a big fan of the demarcations along the side. Please note, though, that the stem for attaching to a vacuum line is larger than you might be used to. In the attached photo, the flask on the left is one I already own that fits pretty much all the tubing I've ever worked with, and the flask on the right is the one in this listing. I can force my rigid tubing over it a little, so it works out, but just be aware. Yes, I know that the listing itself gives dimensions of the stem.

This has increased my productivity 4 fold. I purchased this an=d the 800ml Buchner funnel.

I am giving this two stars because it does not seem to work with a stir bar. The base of it needs to be flat and it seems to have too much of a concave shape.

Very Poor Quality first unit came broken second unit had a bubble in the glass Had too send two units back for refund in full. Don't waist your time.Update: 2/24/2020I ordered the same size Filter Flask from a different manufacture WOW what a difference in quality a Stone makes the glass is twice as thick and clear no problems.

Good product fast shipping

The flask arrived, well packaged and in good condition. With some adaption, able to use 12.5 cm Büchner funnel and vacuum pump with smaller diameter tubing. 1/2” ID vinyl tubing fits upper tabulation and adapter from available set of Büchner funnel adapters fit opening and larger diameter of larger funnel.