Oatey RTB8 Test Ball 8 Inches

Product Description

The OATEY RTB8 is an 8-inch test ball used to temporarily plug and pressure-test drain, waste, and vent (DWV) piping systems. It is inserted into a pipe opening and inflated to create a seal, allowing the pipe section to be tested for leaks under air or water pressure. Plumbers and pipefitters rely on this tool during rough-in inspections and system commissioning. The 8-inch size suits larger-diameter main lines and commercial drain applications where a secure, temporary seal is required before final acceptance.

This test ball is suited for use in residential and commercial plumbing systems where 8-inch DWV pipe requires pressure testing or flow isolation. Typical applications include mainline sewer stubs, large-diameter vertical stacks, and building drain mains. It is commonly used during new construction rough-in stages and during repair or replacement work on existing drainage systems where a section must be isolated.

Key Features

• 8-inch nominal size fits standard 8-inch pipe openings
• Inflatable design creates a temporary, removable seal without permanent modification
• Suitable for air and water pressure testing of DWV piping
• Designed for use during rough-in inspection and system commissioning

Compatibility

Designed as an OEM-style replacement and standard test accessory for 8-inch diameter drain, waste, and vent piping systems.

Installation Notes

Test balls are installed by licensed plumbers during DWV pressure testing in accordance with local plumbing codes and the International Plumbing Code (IPC). Before inserting the test ball, confirm the pipe section is clear of debris and that all adjacent lines are isolated or capped. Inflate only to the pressure specified for the test procedure and never exceed the rated working pressure of the ball. Deflate fully before removal to avoid damaging the pipe or fittings.

Technical Specifications

• Pipe Size: 8 inches
• UPC: 675115041387

Standard Information

• Brand: OATEY
• Manufacturer Part Number: RTB8