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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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iFilters CBSM-2510 Coconut Shell CTO, Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 Micron
iFilters CBSM-2510 Coconut Shell CTO, Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 Micron
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iFilters CBSM-2510 Coconut Shell CTO Carbon Block Drinking Water Filter – 2.5" x 10", 0.5 Micron High-Performance Filtration for Clean, Great-Tasti...
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Hydronix Reverse Osmosis (RO) Replacement Filter Set – 5 Stage Kit (50 GPD Membrane, 5 Pcs) Compatible with Standard 5-Stage RO Systems The Hydroni...
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iFilters Smart Pack RO-100KIT – 5-Stage Reverse Osmosis Replacement Filter Set (100 GPD Membrane) High-Performance 5-Stage RO Filtration for Superi...
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OEM Replacement Water Filter Cartridge Set for Hydro Guard HDG-45-SET 4-Stage Drop-In Reverse Osmosis System Keep your water filtration system oper...
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4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For most standard 4 Stage RO system. Sediment, CTO Carbon Block, ...
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Hydron HLP-4021 – 1000 GPD Light Commercial Reverse Osmosis Membrane High-Performance 4" x 21" RO Membrane for Light Commercial Applications The Hy...
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Hydron BW-4040 Reverse Osmosis Membrane – High-Performance Commercial RO, 2400 GPD The Hydron BW-4040 Reverse Osmosis Membrane is a high-efficiency...
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Hydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set – 50 GPD The Hydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set is...
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5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard RO system. Sediment, UDF, CTO, Membrane and GAC ...
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Hydronix CB-25-1005 Whole House RO Drinking Water Coconut Carbon Block Water Filter 5 m 2.5" x 10"
Hydronix CB-25-1005 Whole House RO Drinking Water Coconut Carbon Block Water Filter 5 m 2.5" x 10"
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Hydronix CB-25-1005 Whole House RO Coconut Carbon Block Water Filter – 5 Micron, 2.5" x 10" Premium Carbon Block Filtration for Cleaner, Better-Tas...
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Hydronix SDC-25-1005 polypropylene sediment filters have a particle retention Size of 5 microns and are used in residential and commercial water fi...
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5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard RO system. Sediment, GAC, CTO, Membrane & GA...
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The Hydron TW-2012-100 Reverse Osmosis membrane produces 100 gallons per day and is designed for home drinking water, DI systems, office and certai...
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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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Reverse Osmosis (RO) Replacement water filters for AC-30 (AC30) and AC-15 (AC15) Reverse Osmosis (RO) Systems. Includes Sediment, Carbon Block and ...
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4 Pack - Hydronix Carbon Block Filters are manufactured with high purity coconut shell carbon. These Coconut Carbon Block filters provide an excell...
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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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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 SDC-25-1005 polypropylene sediment filters have a particle retention Size of 5 microns and are used in residential and commercial water fi...
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This Hydronix ICF-10Q inline coconut filter has 1/4" quick-connect connections and is suitable for drinking water filtration applications. This NSF...
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TW-1812-50 50 GPD Reverse Osmosis DI RO Membrane Replacement Filter, Fits Standard Systems
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Hydron TW-1812-50 – 50 GPD Reverse Osmosis Membrane for DI & RO Systems The Hydronix TW-1812-50 is a high-performance 50 GPD Reverse Osmosis me...
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The Hydronix SPC-45-2005 4.5" x 20" 5 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pl...
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The Hydronix UDF-20BP granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction need...
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Hydronix SDC-45-2001 polypropylene sediment filters have a particle retention Size of 1 Micron and is used in a residential and commercial water fi...
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