InnerSeal is an engineered solution from Perma-Liner Industries for repairing defective laterals and the connection to the mainline. It is a one-piece, structural and continuous main-to-lateral CIPP that completely seals the connection while simultaneously renewing the lateral. It was designed using the standard practice for the rehabilitation of sewer service laterals — ASTM F2561-11. 866/336-2568; www.perma-liner.com.