- Holds 30 ft of head and back pressure to 13 PSI
- Single-Size Underground Test-Ball Plugs are made of natural rubber material for excellent expansion and memory
- Seals both round and out-of-round pipe
- Removable inflation valve can be replaced if damaged or replaced with quick disconnect fitting
- Features an eye-bolt for use with a poly-lift line
- Use to block flow or as a back plug for sewer air testing
- Available in multiple sizes
- Inflation Pressure: 25 PSI
- Maximum Back Pressure: 13 PSI / 30 ft.
- Usage Range: 14-16.25 in.
- Color: Black