Filter Cartridge Reduces Chlorine Taste and Odor Rust Sediment Micron Rating 25 micron Flow Rate 4 gpm Outside Diameter 4 1/4 in Overall Height 9 5/8 in Service Life 30 000 gal For Use With 10 in High-Flow Application Whole House Compatible Mfr Model Number GNQH38S GNWH38F GXWH30C GXWH35F GXWH40L Filter Type Chlorine Taste and Odor Rust Sand Sediment Maximum Temperature 100 Degrees F Minimum Temperature 40 Degrees F Overall Length 4 1/2 in Standards NSF/ANSI 42