Cherne’s original pneumatic plug! Pneumatic plugs allow greater flexibility than mechanical plugs because they seal both round and out-ofround sewer pipes of all types. Test-Ball Plugs are designed to block sewer flow or to be used as a back plug for sewer air testing. These plugs are made of natural rubber‚ ensuring they are durable and corrosion-resistant. The design of multi-size Test-Ball Plugs allows one size to fit several pipe diameters.
Comes with an attached chain and ring handle. Use the handle to carry the plug or act as an anchor to prevent plug from sliding down a line.