Complete System (2) 10"x54" resin tanks (2) Riser tubes with distributor baskets 1.5 cubic feet FINE MESH resin per tank (3 cubic feet total) Gravel bed in each tank Fleck 9100SXT Digital Metered Control Head Fiber Reinforced Polymer Valve Body Choice of connection Larger Round Brine Tank with Safety Float Dual Tank Twin tanks alternate treatment, providing maximum efficiency and ensuring soft, iron free water 24/7 SXT Controller LCD Display and touchpad controls for simple setup and added control On-Demand Flow meter measures water and regenerates based on water use, not time, conserving salt and water 48k (48,000) grain capacity Contains 1.5 cubic feet of FINE MESH resin in each tank, capable of removing up to 48,000 grains of compensated hardness (hardness + iron) between regeneration cycles 12 GPM Service Flow Treats a maximum flow rate of 12 gallons per minute Removes Water Hardness AND Iron Ion exchange process physically removes the ions that cause hard water and rust stains Eliminates Scale Water that has been softened does not form scale buildup on faucets or fixtures or inside pipes Eliminates Iron & Rust Stains Iron pro removes ferrous & ferric iron up to 6-8 ppm, helping prevent rust stains on fixtures, clothing, and appliances Reduces Soap Use Soft water improves soap efficiency, reducing the amount required for dishes, laundry, and bathing. Fleck 9100SXT Digital Control Head Polymer valve body and digital metered head provides maximum efficiency and simple user control at an affordable price Structural USA Resin Tank Durable, high quality polyglass tank made by a trusted name it tank manufacturing Fine Mesh Resin Specifically designed for treatment of both ferrous (clear water) and ferric (red water) iron, up to a maximum of 6-8 ppm Larger Round 18" Brine Tanks Used for holding salt used during the regeneration process.