Filter Cartridge Reduces Rust Sediment Micron Rating 30 micron Flow Rate 4 gpm Outside Diameter 4 1/4 in Overall Height 9 3/4 in Service Life 24 000 gal Filter Media Polyester For Use With 10 in High-Flow Application Whole House Compatible Mfr Model Number GNQH38S GNWH38F GXWH30C GXWH35F GXWH40L Filter Type Rust Sand Sediment Maximum Temperature 100 Degrees F Minimum Temperature 40 Degrees F Overall Length 4 1/4 in Standards NSF/ANSI 42