A drunken night on ebay saw me purchase a $20 sep funnel thinking that this would revolutionize my yeast rinsing, maybe a better quality one would be ok but the glass stop cock on mine was quite a rough surface, it did come apart completely for cleaning but i reckon the rough surface would be a ******* for sanitising. It lives deep in a box somewhere in the brewery. The tall skinny jar i have always used still works great the labels come off long time ago so no idea what it was, probly some pasta sauce or something.