All of our products are Heavy Duty & for professional tool users;Gripper Plugs are ideal for sewer testing and long-term applications.;Nominal size: 3;Range of use: 2.8-3.1;Maximum Back Pressure: 17 PSI 40 FT

• Cherne 270-237 3 Gripper Plug
• 3""

Cherne 270-237 3 Gripper PlugOatey