SHURflo Classic Series Swivel Nut Water Strainer. Clean, clear economical strainer eliminates unnecessary repairs by keeping debris and other particles out of your pump. Screws directly onto the pump head. Transparent design shows when it is time to clean the bowl. Easy dis-assembly, cleaning and reassembly. 50 mesh stainless steel screen. For use with all model 1901, 2088, 2093, 4008 and 4900 Series pumps. 1/2 inch NPSM inlet, 1/2 inch Female Swivel outlet.