Heavy Duty HDPE Vacuum Bottle, 2 L, with 53 mm (53B) Tangle Free VersaCap, Two 1/4 Inch Hose Barbs and Sealable Vent Port, Bleach Compatible, 1/EA

This is night and day compared to the crappy flask-stopper-glass nonsense I've had on every bench. So much easier to clean. (Correction: I actually clean it.) Outside cap spins and the part the hosing is attached to doesn't move, so dumping waste is quick. 2L is a good size. We got the 4L set up for the hood with the quick connects. Full vacuum traps are my PI's pet peeve, so it's nice not to get yelled at about it.

Works great! Holds a full vacuum all day. Price is very good compared to other brands.

Product works great, very reliable and consistent. And great price compared to other options too!