Oatey Cherne 271705 Clean-Seal 2 in Plug - Reliable Test Seal

In this review the Oatey Cherne 271705 Clean-Seal 2 in Plug earns its place as a practical tool for plumbers and maintenance technicians who run stack tests on drain, waste and vent systems. The bottom line: if you need a simple plug that threads into a standard test tee to eliminate backsplash and create a reusable seal, this plug delivers dependable performance. The review focuses on build, ease of use and reuse potential, with attention to the replaceable snifter valve and the natural rubber construction.

Key Features

• Threaded design: Threads into a standard test tee to stop test water backsplash and make stack testing cleaner and safer.
• Inflatable bladder: The inflatable bladder provides a tight seal inside the pipe so tests can be conducted without leaks or drips.
• Replaceable snifter valve: The removable snifter valve inflation fitting can be replaced after wear, extending the service life of the plug.
• Natural rubber construction: Made from long-lasting natural rubber to withstand repeated inflation cycles and typical jobsite handling.
• Compatibility: Designed to seal both cast-iron and plastic pipe, giving flexibility across common plumbing materials.

Who It's For

The Oatey Cherne Clean-Seal plug is best for professional plumbers, building maintenance staff and contractors who perform routine stack testing and need a durable, reusable plug that reduces mess during tests. It is especially useful on sites that switch between cast-iron and plastic piping where a single sealing solution is preferred.

Homeowners who rarely perform plumbing tests or anyone needing a custom-sized plug outside standard test tee fittings should consider alternatives or consult a plumber, since this product is intended to be used with standard test tee threads and 2 in pipe applications.

Pros & Cons

Pros

• Provides a reliable seal that eliminates backsplash during stack testing, improving jobsite safety.
• The replaceable snifter valve makes maintenance simple and extends the usable life of the plug.
• Long-lasting natural rubber construction holds up to repeated use and handling.

Cons

• Limited to fit where a standard test tee and a 2 in plug are appropriate, so it is not universal for all pipe sizes.

Specifications

Product name	Oatey Cherne Clean-Seal 2 in Plug
Model number	271705
Brand	Oatey
Material	Natural rubber
Inflation fitting	Replaceable snifter valve
Seals	Cast-iron and plastic pipe
Country of origin	China

Our Verdict

The Oatey Cherne 271705 Clean-Seal 2 in Plug is a practical, good-value tool for professionals who perform routine stack testing and want a reusable, low-mess solution. Its threaded fit, replaceable snifter valve and durable natural rubber construction make it a reliable choice for jobs that use standard test tees on cast-iron or plastic pipe.

Frequently Asked Questions

Can this plug be reused?
Yes. The plug is made from long-lasting natural rubber and includes a replaceable snifter valve so it can be used multiple times with proper care.

What pipe materials will it seal?
It is designed to seal both cast-iron and plastic pipe when used with a compatible test tee and 2 in opening.

How does the inflation fitting help?
The removable snifter valve inflation fitting allows easy inflation and deflation and can be replaced if damaged, extending the plug's service life.