Cherne Test-Ball series single-size inflatable pipe plug for 4" DWV (Drain, Waste, Vent) pipes - including Sch 40/80 PVC, ABS, cast iron (no-hub, service weight and extra-heavy) and others. Fits inside the system through test tees, cleanouts, floor drains, end of pipe, etc.Technical Specifications:
- Max Pipe Inside Diameter (ID): 3.41" - 4.25"
- Inflation Pressure: 30 psi
- Max. Back Pressure: 13 psi / 30ft
- Deflated Diameter: 3.25"
- Deflated Length: 6.25"
- Weight: 9 oz