This plumbing component provides access to a drain or sewer line from two directions. It typically consists of a Y-fitting with capped openings, allowing plumbers to insert tools or cameras for inspection and clearing of blockages. For example, during a sewer backup, accessing the line from either side of a clog can expedite the resolution process.
The incorporation of such a feature enhances the efficiency of plumbing maintenance. It reduces the need for extensive excavation or dismantling of pipes when addressing obstructions. Historically, simpler cleanout designs provided access from only one direction, often leading to more complicated and time-consuming repair procedures. This improvement represents an advancement in plumbing system design that streamlines diagnostic and remedial activities.