Water Filter System, Reduces Scale, Micron Rating Not Rated, Connection Size 3/4 in, Overall Height 10 1/4 in, Width 2 3/4 in, Service Life 35,800 gal, Includes Valve No, Flow Rate 10 gpm, Application Scale Inhibition, Color White, Compatible Mfr. Model Number AP431, Compatible Grainger Part Number 3P777, Connection Type NPT, Depth 2 3/4 in, Filter Media Polyphosphate, Head Material Stainless Steel, Housing Material Polypropylene, Includes Filter (Mfr. No. AP430SS), Includes Gauge No