Frizzlife 3-Stage Under Sink Water Filter System SK99-NEW, Direct Connect***YOU GET AN ENTIRE SYSTEM FOR THE COST OF THE 4 BRAND NEW CARTRIDGES INCLUDED*** 【FULLY CERTIFIED SYSTEM】 rigorously tested and certified by IAMPO against NSF/AISI 42&53 for Material Safety, Structure Integrity, Flow rate, and Filtration Effectiveness.【PREMIUM FILTRATION PERFORMANCE】 Adopting 0.5 μm purification accuracy, the SK99 under counter water filter can effectively remove over 99% of contaminants such as dust, SEDIMENTS, LEAD, CHLORINE, CHLORAMINE, FLUORIDE, HEAVY METALS, and VOCs, etc. from tap water whilst leaving in all the beneficial minerals.【FAST WATER FLOW & EASY INSTALLATION】Tested flow rate can reach up to 2.0GPM @60 psi. Can always fill up a 330ml cup of water in 3 seconds. The installation of the water filter takes less than 15 minutes following comprehensive video instruction. The SK99 under sink filter system can also hook up to the refrigerator by using our ice maker kit IMC-2.【MONEY SAVER & ECO-FRIENDLY】When replacing the filters, You only need to change the core filters inside. Less plastic and cheaper! Search replacement filters: M3001, M3002, M3003.【SUPERIOR DESIGN WITH 24/7 USA TECH SUPPORT】 The complete system of NEW SK99 has been upgraded since Dec 2020, featured with stronger cases, bottom caps, and integrated water board which passed 200,000 times of 600 psi water hammer test. It is compatible with both 3/8” and 1/2” cold water tubes. The compact design of the system can perfectly fit your cabinet under the sink.