Universal wrench allows you to loosen and remove any cleanout plug with ease. It can and will help loosen any clean out plug; Both 3 and 4 inch Male sewer cleanout plugs, 3 and 4 inch Female sewer cleanout plugs and slotted or "flush" sewer plug. Also works with any Camco 4-in-1 adapter. Works with slotted or flush sewer plugs Universal 6-in-1 tool Easy grip handle | Camco Dump Station Wrench