Low Price Oatey RTB2 Test Ball Plug 2 Inches

The OATEY RTB2 is a 2-inch test ball plug engineered for pressure testing drain, vent, and waste (DWV) systems. The inflatable ball design allows the plug to seal out-of-round pipe, which standard rigid plugs cannot do reliably. It inserts through a standard test tee for access, making it a practical choice for in-line testing without cutting additional access points. Licensed plumbers and pipe tradespeople use this plug during rough-in inspections and post-installation DWV pressure tests to confirm system integrity before walls are closed.

The RTB2 is suited for residential and light commercial DWV applications where a 2-inch pipe size is present. It works in any pipe material — PVC, ABS, cast iron, copper, and other common pipe types — making it a versatile option across mixed-material installations. The plug is inserted through a test tee and inflated to create a seal, allowing the system to be pressurized or flooded for leak detection per applicable plumbing code requirements.

Key Features

• 2-inch nominal size fits standard DWV test tee openings
• Inflatable ball design seals out-of-round pipe that rigid plugs cannot accommodate
• Compatible with any pipe material including PVC, ABS, cast iron, and copper
• Inserted through a test tee — no additional pipe cuts required for access
• Designed for drain, vent, and waste system testing applications

Compatibility

Designed as an OEM-style replacement and standard test plug for 2-inch DWV piping systems. Compatible with any pipe type and material where a 2-inch test tee is present.

Installation Notes

Installation and testing should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Before inserting the plug, verify the pipe interior is clear of debris that could prevent a proper seal. Inflate only to the pressure recommended for the test procedure being performed — do not over-inflate. Always relieve pressure completely before removing the plug from the line.

Technical Specifications

• Pipe Size: 2 inches
• Application: Drain, vent, and waste system testing
• UPC: 675115240025

Standard Information

• Brand: OATEY
• Manufacturer Part Number: RTB2