Filter Cartridge Reduces Mineral Scale Total Dissolved Solids (TDS) Micron Rating Not Rated Flow Rate 0.1 gpm Outside Diameter 3 1/4 in Overall Height 14 1/2 in Service Life 24 mo Filter Media Reverse Osmosis Separation For Use With Steam Boilers Steamers Warmers Application Evaporative Equipment Steam Boilers Steamers Warmers Compatible Mfr Model Number MRS-20 Filter Design Specialty Filter Type Reverse Osmosis Membrane Maximum Pressure 100 psi