Waterdrop NSF/ANSI 53 Certified Multiple-Stage Replacement Water Filters, Replacement for ZR-017 Pitcher Filters and Dispenser Filters, Reduce TDS, PFOA/PFOS, Chlorine, Bad Taste and Odor, 2 Pack Our filters, certified by IAPMO lab, reduce PFAS, mercury, and chlorine, ensuring cleaner and safer drinking water. NSF-certified Waterdrop replacement filter offers high-quality water purification by reducing chlorine, bad taste, odor, mercury, and lead. The Waterdrop replacement filter reduces TDS and improves water taste while being cost-effective, saving up to 315 bottles of water per filter change. Easy-to-install Waterdrop replacement filter is leak-free, compatible with various filters, and ensures high-quality drinking water. Material ion exchange resin Product Dimensions 4 in. D x 7 in. W x 8 in. H External Testing Certification ANSI Product Benefits.