The ESP Extended Surface Pleat bag filter is designed for high dirt holding capacity and high flow by pleating two layers of nominal felt to create a pre-filter and final filter layer inside a standard Size #2 bag filter. Under normal operating conditions, this bag should provide approximately 4× the life of a standard nominal bag. Longer life reduces change-out frequency, increasing throughput and reducing downtime and disposal costs. No equipment modification needed — ESP fits most standard Size #2 strainer baskets.