Specifications include, but are not limited to: Sewer sealing cushions shall be of the Lampe brand, part number 1-600, or approved equivalent.Sewer sealing cushions shall require no additional bracing.Sewer sealing cushions shall be capable of closing various types of pipe ranges and or diameters.Sewer sealing cushions shall be capable of sealing non-circular cross sections of sewer pipe infrastructure.Sewer sealing cushions shall be light weight, repairable and require minimal space for storage and or transport.Sewer sealing cushions shall be chemical resistant and capable of insertion into narrow and or confined spaces.Sewer sealing cushions shall have a field application minimum range of 8” inches. Sewer sealing cushions shall have a field application maximum range of 23” inches.Sewer sealing cushions shall have an installation length of 140cm. Sewer sealing cushions shall be of the Lampe brand, part number1-1400, or approved equivalent.