Material: Natural rubber material, with good expansion and memory.
Use: Seal round pipe.
Maximum pressure :2.9 PSI / 20 kpa / 0.02MPa.
Easy to use: It is easy to pass the test tee, sanitary tee, floor drain and other difficult to access pipe openings.
Easy to take out: Galvanized steel chain and ring handle as an anchor to prevent the plug from slipping off the line, wider expansion range than the mechanical plug.