Oatey RTB4-6 Long Test Ball Plug 4 to 6 Inch

Product Description

The OATEY RTB4-6 is a long test ball plug engineered for waste stack pressure testing in drain, waste, and vent (DWV) systems. It seals both the rise and the run simultaneously, allowing the technician to perform a single test across both pipe segments. The RTB4-6 accommodates a pipe size range of 4 inches to 6 inches, making it useful across a range of residential and commercial drain configurations. Licensed plumbers and pipefitters use this plug during rough-in inspection stages when local codes require a documented pressure or air test of the DWV system before walls are closed.

This plug is suited for waste stack testing in residential and commercial construction and remodel projects. It can also be positioned at a wye fitting to seal the connection and conduct sewer air tests, giving the installer a single tool that covers multiple test points in a typical DWV stack assembly. It is a field-proven solution for inspection-stage testing where a reliable, repeatable seal is required.

Key Features

• Seals both the rise and the run in a single installation for efficient waste stack testing
• Compatible with wye fittings to support sewer air testing procedures
• Fits pipe sizes from 4 inches to 6 inches for flexible jobsite use
• Long-body design provides additional contact surface for a stable, leak-resistant seal
• Designed for repeated use across multiple test cycles

Compatibility

Designed as an OEM-style test plug for 4 inch to 6 inch DWV waste stack and wye fitting applications in residential and commercial plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off all water supply and relieve any system pressure before inserting or removing the plug. Do not exceed the pressure rating specified on the plug body. Inspect the plug for wear or damage before each use to ensure a reliable seal during testing.

Technical Specifications

• Pipe Size Range: 4 inches to 6 inches
• Application: Waste stack testing, sewer air testing
• UPC: 675115271098

Standard Information

• Brand: OATEY
• Manufacturer Part Number: RTB4-6