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RO Replacements
RO Replacements keep your reverse osmosis system working the way it should, with fresh cartridges and membranes that protect taste, clarity, and performance. Old filters can clog and slow flow, which can change flavor and put extra strain on your RO stages. Options range from sediment and carbon block cartridges to complete Smart Pack kits that bundle multiple stages in one purchase.
About RO Replacement Filters and Membranes
Reverse osmosis systems rely on a sequence of pre-filters plus an RO membrane to reduce dissolved solids and improve drinking water quality. Sediment filters catch grit and rust, while carbon stages help reduce chlorine and odors that can damage membranes and dull flavor. Popular choices include 10-inch standard cartridges, drop-in sets, and membranes sized for different production rates such as 50 GPD, 75 GPD, 100 GPD, and higher-output commercial formats.
Maintenance timing depends on usage and source water, so many owners follow a routine swap for pre-filters and a longer interval for the membrane. Warning signs include a drop in water pressure, slower tank refill, or taste changes that show up even after flushing. Matching the right parts starts with checking cartridge size, stage count, and membrane rating printed on your system labels.
Why Choose iFilters for RO Replacements products?
Selection matters because every RO system has its own sizing and stage layout, and iFilters stocks a wide range of compatible options for quick matches. Product pages help with in-stock status, ratings and reviews, and sorting tools so you can browse best sellers or narrow down what fits. Auto Ship keeps replacement timing consistent for households that want steady water quality without calendar reminders. Clear specs like micron ratings, cartridge dimensions, and kit contents help you choose confidently, whether you need one carbon block or a full replacement pack.
Shop RO Replacements online today!
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5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For any standard 5 Stage RO system. Sediment, GAC, CTO Carbon Blo...
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Hydronix CB-25-1005 Carbon Block filters are NSF/ANSI Standard 42 certified for material and structural safety. CB-25-1005 filters have a particle ...
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5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 100 GPD Membrane. For any standard RO system. Sediment, UDF, CTO, Membrane & G...
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This High Quality 3 set SmartPack RO Reverse Osmosis Replacement filter cartridges (Pre-filters) are NSF Certified, measuring 2.5" x 10". These fil...
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Hydronix SDC-25-2005 polypropylene sediment filters have a particle retention Size of 5 micron and is used in a residential and commercial water fi...
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The Hydronix UDF-10 granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction needs....
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2 Pack - Hydronix SDC-45-2005 polypropylene sediment filters have a particle retention size of 5 microns and are used in residential and commercial...
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The 5 Micron Smart Packs 2.5"x10" NSF Certified Sediment Premium Filters are a smart economical solution to pre-filtration for many applications. T...
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Hydronix SPC series 4.5" x 10" 5 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleated...
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6 Pack - Hydronix SDC-45-2005 polypropylene sediment filters have a particle retention size of 5 microns and are used in residential and commercial...
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Hydronix ICF-10Q38 inline coconut shell carbon filters have 3/8" quick-connect connections, and are suitable for drinking water filtration applicat...
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Hydronix SWC-25-1005 polypropylene String wound filters have a particle retention Size of 5 micron and are used in a residential and commercial wat...
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The Hydron TW-1812-75 Reverse Osmosis membrane produces 75 gallon per day and is designed for home drinking water, DI systems, office and certain L...
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4 pcs RO Reverse Osmosis pre filters. All filters are Premium NSF Certified. This set is used as a mid year replacement set (depending on water usa...
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Hydronix ICF-10 inline coconut shell carbon filters have 1/4" npt connections and are suitable for drinking water filtration applications. The coco...
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4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard 4 Stage RO system. Sediment, CTO Carbon Block, M...
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The Hydronix SDC-25-1001 polypropylene sediment filter is a 1 Micron rated filter. It's a universal standard size fits any standard Reverse Osmosis...
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The 1 Micron Smart Packs 2.5"x10" NSF Certified Sediment Premium Filters are a smart economical solution to pre-filtration for many applications. T...
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4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard 4 Stage RO system. Sediment, CTO Carbon Block, M...
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1 - 2 Year (14 filters) supply of RO Reverse Osmosis Filters. All filters are Premium NSF Certified Hydronix. This universal set s compatible with ...
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Hydronix ICF-2512Q Inline Filters with Quick Connect utilize NSF-listed coconut shell GAC and are designed to remove unpleasant taste and odor and ...
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Hydro Guard HDG-TFM36 – 36 GPD Reverse Osmosis Membrane Replacement for Culligan AC30 & AC15 The Hydro Guard HDG-TFM36 Reverse Osmosis Membrane...
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Hydronix SDC-45-2005 polypropylene sediment filters have a particle retention size of 5 micron and is used in a residential and comercial water fil...
View full details
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The Smart Pack Pre & Post Carbon Block RO Replacement Set is built to keep your reverse osmosis system doing what it does best: providing clean...
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