The Bung Access Ultra-Drum Funnel sits securely on any 55 gal drum and gives added protection against splashes and leaks from oil or other contaminated liquids. Its unique zig-zag channeled surface design diffuses splashes, while level surfaces allow filters, paint cans, buckets and bottles to stand upright while draining passively. The funnel's unique shape allows access to the 3/4 in bung making it ideal for installing a pop-up liquid level gauge. This makes it easy for you to visually monitor the waste level in the drum to eliminate messes caused by overfilling and helps you plan ahead for drum removal.