The CU-A4 ultrafiltration system is an excellent substitute choice for those incapable to satisfy a reverse osmosis system. Included with the system is an air-gap faucet, but the system can easily also be put in inline to supply your refrigerator dispenser and also ice creator. If you consider to use the CU-A4 as an inline filter (meaning using this without the included air-gap faucet), your incoming water stress must be 40 PSI or here. If this is above that, a 40 PSI stress regulator (APR40) need to be put in on the input pipe to maintain the stress on the system at 40 PSI or here. The CU-A4's first stage is a 5 micron debris filter (PP for quick) made use of to eliminate corrosion, sand, and also strong impurities from the water. The 2nd phase has the UF (Ultrafiltration) weak thread membrane layer. The UF membrane layer has a micron measurements of merely 0.1, giving this the capability to eliminate suspended bits and also contaminants of higher molecular weight from the water. The 3rd phase is a hybrid filter, mixing KDF (Kinetic Degradation Fluxion Media) and also activated carbon dioxide. KDF media kills algae and also fungis, regulates micro-organisms development, and also removes chlorine, pesticides, hydrogen sulfide, iron, top, nickel, chromium, cadmium, calcium mineral, aluminium, mercury, arsenic, and also other all natural compounds. In doing this, the KDF media is also prolonging the lifestyle of the activated carbon dioxide countless opportunities over. The 4th and also last filter phase houses the message activated carbon dioxide filter. This coconut shell activated carbon dioxide filter polishes off the water through taking out any achievable recurring chlorine, flavors, or odors. To recap, reverse osmosis systems like the RCC7 slightly exceed the CU-A4 in absolute filtration measures, but the CU-A4 can easily create water as needed, performs certainly not call for a tank, performs certainly not possess a minimum stress requirement, and also performs certainly not call for waste water. If you are actually trying to find an in home filtration system without the thickness and also drawbacks of an RO system, the CU-A4 is an excellent selection.