Water Filtration System, Reduces Atrazine, Chlorine Taste and Odor, Cyst, Lead, Lindane, Nominal Particulate Class I, Micron Rating 0.5 micron, Connection Size 1/4 in, Overall Height 12 7/8 in, Width 7 5/8 in, Service Life 500 gal, Flow Rate 0.5 gpm, Application Whole House, Color White, Compatible Mfr. Model Number US-2R, Compatible Grainger Part Number 53CF16, Connection Type NPT, Depth 4 1/8 in, Head Material ABS, Housing Material Polypropylene