Oatey RTB112 Test Ball Plug 1-1/4 to 1-1/2 Inch

Product Description

The OATEY RTB112 is a test ball plug designed to pressure-test drain, vent, and waste piping systems. It fits pipe sizes ranging from 1-1/4 inches to 1-1/2 inches and is inserted through a test tee to create a reliable seal. The plug works in any pipe material and is engineered to seal out-of-round pipe, which is a common condition found in older or field-cut installations. Plumbers and drain contractors use this plug during rough-in inspections and post-installation testing to verify system integrity before walls are closed.

This test ball plug is suited for residential and light commercial plumbing applications where drain, waste, and vent systems require air or water pressure testing. It is inserted through a standard test tee, inflated or set to form a seal, and used to isolate a section of piping for inspection. The plug accommodates the 1-1/4 inch to 1-1/2 inch pipe range, making it a common fit for lavatory drain lines, fixture branches, and vent stacks in typical residential construction.

Key Features

• Fits pipe sizes from 1-1/4 inches to 1-1/2 inches
• Inserts through a test tee for in-line testing without cutting additional access points
• Seals out-of-round pipe, accommodating real-world field conditions
• Compatible with any pipe material including PVC, ABS, cast iron, and copper
• Designed for testing drain, vent, and waste systems

Compatibility

Designed as an OEM-style replacement and standard-use test plug for residential and commercial drain, vent, and waste piping systems in the 1-1/4 inch to 1-1/2 inch pipe size range.

Installation Notes

This plug is installed by licensed plumbers during pressure or air testing of DWV systems, typically required by local plumbing code prior to inspection sign-off. Ensure the system is depressurized and free of flow before inserting or removing the plug. Follow IPC or local plumbing code requirements for test duration and pressure levels. Do not exceed the rated working pressure of the plug or the connected piping system.

Technical Specifications

• Pipe Size Range: 1-1/4 inches to 1-1/2 inches
• Application: Drain, vent, and waste system testing
• UPC: 675115240018

Standard Information

• Brand: OATEY
• Manufacturer Part Number: RTB112