EISCOBuchner Funnel, 9cm - Polypropylene, 2 Parts - Stem Length, 6.5cm - Lightweight, Autoclavable

Nice item, high-quality definitely worth the money.

This is made well and very durable.

great

I can't think of a single reason to buy special "filter paper" for this. I just used coffee filters. Much cheaper and readily available at your local grocery store.

It's a fine item, but I think it's too big. You've probably used the 7cm diameter funnel in school, and I think that's the right size. Unless you have a really large filter flask (>500 mL), an above-average strength vacuum (the vacuum has to pull on a larger area, reducing its effect), and a lot of material to filter, I think you should go with the 7cm diameter funnel. VERY important to note: this funnel does NOT go well with 7-8 cm filter paper. The paper is too small. 7 cm paper actually fits the 7cm funnel perfectly. I imagine 9cm paper would fit this one.

Liquids do not drain out completely. The plastic has some kind of surface tension coating.

Great 2 piece unit. Good mold work; no warping especially where contact with filter paper is made.

excellent value and fast shipping