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 Tested Removable Self-Aligning Screen Design Numerous Mesh and Blow-off Options including Blow-off Ball Valves ARRA Compliant 100% Cast, Machined and Assembled in the USA