CFS RO Prefilter Set for KR15 KR10 KFC1 FILTER-SET RO-45 RO-90-3 Pc

• THREE CARTRIDGES IN STAGE ORDER - Stage one is a graded density polypropylene sediment filter that holds back dust, rust and particles before they reach anything else. Stages two and three are extruded carbon blocks, and that pair is doing the important work: chlorine reaching the membrane is what shortens membrane life fastest. All three are standard 10 by 2.5 in, so they drop into the housings you already have.
• BETTER TASTING WATER FROM EVERY SOURCE - Whether your home runs on municipal tap water or a private well, the carbon reduces the chlorine taste and odor that make water unpleasant to drink and cook with. For certified reduction of specific contaminants, look for cartridges tested to NSF/ANSI 53 for those claims.
• FITS THESE SYSTEMS - Direct replacement for the KR15 and KR10 prefilter positions, covering KFC1 and KFC2, and for the FILTER-SET stage 1 to 3 set. All three cartridges are standard 10 by 2.5 in, so the same set fits RO-45, RO-90, RO-PH90, RO-PERM, RO-Pump, RO-Hi, WFS-1000, ROES-50, ROES-75, ROES-PH75, ROES-UV75, W-525, RCC7AK and any other system built around standard 10 in filter bowls.
• MEMBRANE AND POST FILTER NOT INCLUDED - This set covers the three prefilter positions only, which on most systems is the six month service. A membrane usually runs one to two years and is a separate part; use the selector above if you need the complete set or the four piece set with the inline post filter.
• CHANGE ALL THREE TOGETHER - About every six months on typical municipal water, sooner on well water or a heavy sediment line. Run water through the new carbon cartridges for a few minutes before use to clear loose carbon fines, which is normal on any new carbon filter. Compatible replacement set made by CFS, not an original manufacturer part.

CFS three piece RO prefilter set covering stages one, two and three: one sediment filter and two carbon blocks, all standard 10 by 2.5 in. These are the three cartridges that do the work before the membrane. Stage one is the sediment filter. It holds back the dust, rust and sand that would otherwise load the stages behind it, which is the cheapest work in the system and the reason the rest lasts. Stages two and three are carbon blocks, and that pair is doing the job that costs you money if you skip it: chlorine reaching the membrane is the single thing that shortens membrane life fastest. A membrane is the expensive part of a reverse osmosis system, and these three cartridges are what protect it. Because all three are standard 10 by 2.5 in, this set fits far more than one brand. It replaces the KR15 and KR10 prefilter positions, covering KFC1 and KFC2, and the FILTER-SET stage 1 to 3 set. The same set also fits RO-45, RO-90, RO-PH90, RO-PERM, RO-Pump, RO-Hi, WFS-1000, ROES-50, ROES-75, ROES-PH75, ROES-UV75, W-525 and RCC7AK. If your system takes standard 10 in cartridges, this set fits it. What is not included: the membrane and the post filter are separate parts. This set covers the three prefilter positions only, which on most systems is the six month service, while a membrane usually runs one to two years. Use the selector above if you need the complete set with the membrane, or the four piece set that adds granular carbon and an inline post filter. Change all three together, about every six months on typical municipal water and sooner on well water or a heavy sediment line. Run water through the new carbon cartridges for a few minutes before use to clear loose carbon fines, which is normal on any new carbon filter. This is a compatible replacement set made by CFS, not an original manufacturer part, and part numbers are used for reference only.