Use these 4" diameter funnels to safely dispose of liquid laboratory waste. A locking hinged lid minimizes leaks and spills when the funnel is closed. Quick-disconnect fitting on models 12020-64 and -65 allows fast and easy connection to Justrite Centura safety containers. Funnels are constructed of high-density polyethylene (HDPE) and polypropylene (PP) with a Viton® gasket.