The Internal/External Adaptor Seal (IEA Seal) is a sanitary manhole seal that prevents infiltration into the sewer system. The IEA Seal stops inflow between the manhole frame and the top adjusting ring and seals the manhole chimney from the frame to the cone.
The IEA Seal is the only manhole seal in the industry to seal both internally and externally while incorporating a 3/4″ rubber ring under the casting. The one-piece design allows for a quick and easy installation of the seal with no special tools. IEA Seals are manufactured with standard sleeve lengths of 12″ and 16″. Extension sleeves are also available.
- Eliminates inflow and infiltration
- Allows movement from thermal expansion and contraction
- Preserves the integrity of the structure
- Custom sizes