Oatey 41408 Cherne Single-size Underground Test-ball Plug Blocking Sewer Pipe Plug

Product Description

The Oatey 41408 is a Cherne Single-Size Underground Test-Ball Plug built for blocking flow in sanitary and storm sewer systems. HVAC techs, plumbers, and drainage professionals rely on this type of plug to isolate pipe sections during maintenance, inspection, and air testing. The plug inserts into the pipe and inflates to create a secure, pressure-tight seal. It works in both sanitary sewer lines and storm drainage applications, making it a versatile tool for underground pipe work.

Cherne Industries has a long history as a global leader in pipe plugs, blocking tools, and pipe testing equipment. The 41408 reflects that expertise. It is designed for underground use where reliable sealing is critical. The plug can also function as a back plug for sewer air tests, allowing technicians to pressurize a section of pipe and check for leaks or defects. This dual-purpose capability makes it a practical addition to any service truck or job site kit.

The plug inflates to 25 psi, which is 1.7 bar. The inflation thread is 1/4 inch, a standard size compatible with common inflation fittings. The chain eye bolt diameter is 0.375 inches, allowing for safe retrieval after use. The plug is black in color and is a single-size design, meaning it is matched to one specific pipe diameter rather than being an expandable multi-size plug. Plumbers and sewer technicians working on underground systems will find this plug straightforward to deploy, inflate, and remove. It is a dependable blocking plug for any underground pipe maintenance task.

• Inflates to 25 psi for a reliable, pressure-tight seal in underground sewer pipe applications
• Compatible with standard 1/4 inch inflation fittings for fast and easy setup on the job
• Chain eye bolt at 0.375 inches supports safe retrieval after blocking or air testing

Product Highlights

The Oatey 41408 Cherne Single-Size Underground Test-Ball Plug delivers dependable pipe blocking and air test back-plug capability for sanitary and storm sewer systems. It is a trusted tool from Cherne Industries, a recognized name in pipe plug and testing equipment.

Product Information

Standard Information

• Brand: OATEY
• Manufacturer Part Number: 41408

Technical Specifications

• Plug Type: Blocking
• Product Type: Single-Size Underground Test-Ball
• Inflation Pressure: 25 psi (1.7 bar)
• Inflation Thread: 1/4 inches
• Chain Eye Bolts: 0.375 inches
• Color: Black