The Pest Tubes® pest control system is the most effective method available, as a centralized product application system utilizing connector-less tubing, it provides protection where it's needed the most! The Pest Tubes® centralized wall system is installed in interior and exterior wall studs, much the same as electrical wiring, and is usually installed just after electrical inspection and just prior to insulation placement. The tubing is manufactured without connectors, eliminating the chance of separation.