iSpring FCRC25B Lead & Iron Reducing Replacement Water Filter, Ultra High Capacity 4.5 inch x 20 inch Big Blue Effectively reduces lead to below 15 ppb (EPA standard for Drinking water) Ultra high capacity at 15,000 ppm for lead and 30,000 ppm for iron Stable and satisfactory performance at wider ph range 5 - 9 and temperature range 40 - 120F Lasts up to 3 times longer than conventional media. Delivers high flow rate & very low pressure drop Safe for Drinking water applications