Overfill indicator, suitable for 3/4'' and 2'' bungholes, with protective cap. Supplied = assembled. Length = 245 mm. Material = polyethylene (low pressure PE/HDPE) Thread = 3/4 + 2 inch. Fittings = with transparent protective cap. For media = acids and alkalis, oils. Product type = accessories for funnels. Fill level indicator prevents accidentally overfilling drums or containers. The red float switch indicates when a critical fill level is reached and a leak is imminent. With integrated transparent protective cap above the floating head. Fits commercially available steel drums with 3/4'' and 2'' bung holes. Suitable for corrosive liquids. Equipped for a ventilation connection, e.g. to allow vapours from malodorous media or those that emit a lot of gas to be discharged systematically.