1 Pack 4 Inch Sewer Cleanout Cap, Steel Mechanical Test Plug, Sturdy Pipe Plug, Cap for Outside Sewer Pipe with Galvanized Screw and Wing Nut Fit for Most Pipe Sink Pool Features: - Test Plug is designed to be installed at the end of a drain pipe and comes with a gasket to form an airtight seal - Larger wing nut for quick and easy tightening and removal - Metal faceplate is stronger and less likely to rust - 4” size fits most common plumbing pipes and is suitable for use with a wide range of materials. Specification: Material: Metal and rubber Size: 4 inches Package Contents: 1 Pack 4 Inch Sewer Cleanout Cap Notes: Please confirm the required size in advance before purchasing.