Better Funnel

Funnels typically fail to operate properly when there is no air space around the funnel for air to escape from the receiving container. This design helps to alleviate that problem by creating channels around the neck of the funnel for air to escape. Additional ridges along the funnel help as well.

2-15-2020: Better Funnel V2 - added "ribs" along the inside of the funnel to keep filter paper from sticking to the edges.