Aqua Flo QCRO is certified by IAPMO R&T to NSF/ANSI 58 and CSA B483.1 for the reduction of lead, PFOS/PFOA, arsenic and other harmful substances. The QCRO has 10 interchangeable filters that can be used in a variety of combinations to offer treatment options customized to local water conditions. The quick-change cartridges are a homeowner favorite, Canature WaterGroup states. WWW.CANATUREWG.COM