The 4” Eco Funnel is make of HDPE and has a 450mL fluid capacity. Features an easy to use lid, gasket and positive latch to close the lid and maintain an airtight seal. A filter is also built into the interior to reduce the loss of magnetic stir bars and other items when emptying the contents of a vessel into the funnel. The funnel is equipped with an 11” stem to reduce chemical evaporation of hazardous solvents in the lab.