The Apollo Lead Free* YB-LF (59LF) Series Heavy Pattern Strainers are designed with large area screens to protect piping systems and process equipment from unwanted foreign particles with minimum pressure loss.Lead Free*100% Factory Pressure TestedRemovable Self-Aligning Screen DesignNumerous Mesh and Blow-off Options including Blow-off Ball ValvesARRA Compliant100% Cast, Machined and Assembled in the USA