Large capacity and exceptionally heavy 2500ml filtering flask features both vacuum and draining hose barbs for higher volume filtering, allowing you to drain your product out the bottom of the flask without dissembling your whole apparatus. The flask is made of thick-walled borosilicate glass, weighing over 2.5 lbs, 11.5 in. tall x 8.25 in. diameter. The flask mouth is 52mm in diameter. Top and bottom hose barbs are sized for 3/8 in. tubing.