Choosing a superior whole house filtration system doesn’t need to be a challenge. With Doulton’s Rio2000 module whole house, candle filtration system, you can put your mind at ease. The Rio2000 provides outstanding filtration capabilities that remove up to 99.99% of common water contaminants like bacteria, cysts and sediment. The Rio system is capable of contaminant removal as small as .5 microns, and still retains a 6.5 GPM flow rate! To achieve high flow rates, the Rio2000 uses 6 filter candles, significantly increasing the amount of ceramic surface area that the water is exposed to. The Rio2000 Module comes complete with 1-inch inlet/outlet housing, installation hardware and the Rio2000 Module