ROHL Pack of 2 FRX02 FILTRATION FILTER CARTRIDGE Replacement filter for u.1812 filter system, use with country kitchen filter faucets a1435 and a1635 Meets nsf42 and 53 for health and aesthetic effects and complies to nsf61, sec. 9 Reduces pathogenic bacteria, cysts, turbidity, organics, foul tastes and odor 1,000 gallon capacity per filter