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RO Filters

Clean drinking water starts with the right filtration stage, and reverse osmosis setups rely on dependable replacements to keep performance consistent. RO Filters cover the key cartridges used before and after the membrane, so taste stays crisp, and flow stays steady. Options commonly include sediment prefilters that trap sand and rust, carbon block cartridges that reduce chlorine and odor, and polishing filters that improve final flavor. Auto Ship is a simple way to stay on schedule, especially for kitchens that run daily for cooking, coffee, and refill bottles for families, apartments, and offices. Every home has different water conditions, so choosing the right micron rating and media type matters.

About RO Filter Products

Reverse osmosis replacement filters are designed around common sizes used in standard systems, including popular 2.5" x 10" formats for housings and stages for under-sink and compact countertop units. Sediment cartridges typically handle coarse particles first, helping protect carbon stages and the membrane from early clogging. Carbon block and coconut shell carbon options focus on chlorine, taste, and chemical reduction, which support membrane longevity and improve the water you drink. Post polishing choices, including inline GAC filters for fridge ice and drinking lines, help maintain a clean finish at the tap. Many households replace stages on a timed cycle, yet actual timing can shift based on water usage, pressure, and local water quality.

Why Choose iFilters for RO Filter Products?

iFilters makes it easy to match the correct replacement without guesswork, thanks to clear product details, standard sizing, and reliable availability for in-stock items. Shoppers can sort by best-selling, compare ratings, and choose from a broad range of trusted brands and in-house options with pricing that fits maintenance budgets. Auto Ship helps prevent lapses, so filters arrive before performance drops and the system starts to slow down. Fast shipping and an inventory built around common RO setups support quick maintenance, whether you are refreshing a single stage or rebuilding a full set. Support resources also help you confirm compatibility with your housings, tubing, and stage layout.

Shop RO Filter Products online today!

Filters

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Original price $13.88 - Original price $13.88
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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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Original price $13.88 - Original price $13.88
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$13.88
$13.88 - $13.88
Current price $13.88
Original price $20.95 - Original price $20.95
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$20.95
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Current price $20.95

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...

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Original price $20.95 - Original price $20.95
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Original price $8.37 - Original price $8.37
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$8.37
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Current price $8.37

Hydronix SDC-25-2001 polypropylene sediment filters have a particle retention Size of 1 Micron and are used in residential and commercial water fil...

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Original price $8.37 - Original price $8.37
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Original price $10.81 - Original price $10.81
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$10.81
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This 3/8" Quick Connect Hydronix ISF Series Inline Sediment Filters are designed to reduce sand, particles and sediment to produce cleaner, clearer...

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Original price $10.81 - Original price $10.81
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Original price $22.00 - Original price $22.00
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Current price $22.00

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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Original price $22.00 - Original price $22.00
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Original price $70.00 - Original price $70.00
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This 20 pack of Hydronix SDC-25-1005 polypropylene sediment filter is a 5 micron rated filter. Its universal standard size fits any standard Revers...

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Original price $70.00 - Original price $70.00
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Original price $29.74 - Original price $29.74
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$29.74
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Current price $29.74

The Hydronix CB-25-1001 NSF Certified Carbon Block water filter is manufactured with high purity coconut shell carbon and is available in a wide ra...

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Original price $29.74 - Original price $29.74
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Original price $30.25 - Original price $30.25
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$30.25
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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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Original price $30.25 - Original price $30.25
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Original price $29.00 - Original price $29.00
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$29.00
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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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Original price $29.00 - Original price $29.00
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$29.00
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Original price $10.99 - Original price $10.99
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$10.99
$10.99 - $10.99
Current price $10.99

The Hydronix CB-25-1001 NSF Certified Carbon Block water filter is manufactured with high purity coconut shell carbon and is available in a wide ra...

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Original price $10.99 - Original price $10.99
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$10.99
$10.99 - $10.99
Current price $10.99
Original price $13.37 - Original price $13.37
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$13.37
$13.37 - $13.37
Current price $13.37

Hydronix SPC series 2.5" x 20" 5 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleated...

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Original price $13.37 - Original price $13.37
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$13.37
$13.37 - $13.37
Current price $13.37
Original price $11.00 - Original price $11.00
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$11.00
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Current price $11.00

The Hydronix SDC-25-0501 2 pack polypropylene sediment filter has a particle retention size of 1 Micron and is used in a small water filtration sys...

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Original price $11.00 - Original price $11.00
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$11.00
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Original price $7.31 - Original price $7.31
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$7.31
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Hydronix ICF-6 inline coconut shell carbon filters have 1/4" npt connections and are suitable for drinking water filtration applications. The cocon...

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Original price $7.31 - Original price $7.31
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$7.31
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Original price $7.95 - Original price $7.95
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$7.95
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Hydro Guard HDG-CB-AC10 Carbon Block Water Filter – Compatible with Culligan AC30 & AC15 Systems The Hydro Guard HDG-CB-AC10 Carbon Block Water...

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Original price $7.95 - Original price $7.95
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Original price $19.99 - Original price $19.99
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$19.99
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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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Original price $19.99 - Original price $19.99
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$19.99
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Original price $15.99 - Original price $15.99
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$15.99
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Hydronix SDC-25-20-0.5 polypropylene sediment filters have a particle retention Size of 0.5 Microns and is used in a residential and commercial wat...

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Original price $15.99 - Original price $15.99
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$15.99
$15.99 - $15.99
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Original price $9.00 - Original price $9.00
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$9.00
$9.00 - $9.00
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Hydronix SPC series 2.5" x 10" 5 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleated...

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Original price $9.00 - Original price $9.00
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$9.00
$9.00 - $9.00
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Original price $17.40 - Original price $17.40
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$17.40
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Hydro Guard HDG-SED-AC5/4 Sediment Water Filter – Culligan Compatible (4-Pack) for AC30 & AC15 Systems Ensure cleaner, clearer water with the H...

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Original price $17.40 - Original price $17.40
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Original price $23.84 - Original price $23.84
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$23.84
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This Smart Pack IF4-HDG-SED-AC5 contains 4 (stage 1) 100% high purity polypropylene filters (1 year supply). The IF4-HDG-SED-AC5 high purity polypr...

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Original price $23.84 - Original price $23.84
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Original price $40.95 - Original price $40.95
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Hydro Guard HDG-CB-AC10 Carbon Block Pre-Filter – 4-Pack for AC30 & AC15 Systems Ensure cleaner, fresher water with the Hydro Guard HDG-CB-AC10...

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Original price $40.95 - Original price $40.95
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$40.95
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Original price $34.99 - Original price $34.99
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$34.99
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Current price $34.99

iFilters - Smart Pack Water Filters - These 1 Micron Polyester Pleated Cartridges are manufactured from durable polyester to provide you with a sup...

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Original price $34.99 - Original price $34.99
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$34.99
$34.99 - $34.99
Current price $34.99
Original price $7.50 - Original price $7.50
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$7.50
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Hydronix ICF Series Inline Filters utilize NSF listed coconut shell GAC and are designed to remove unpleasant taste and odor and reduce sediment to...

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Original price $7.50 - Original price $7.50
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Original price $8.99 - Original price $8.99
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$8.99
$8.99 - $8.99
Current price $8.99

Hydronix ICF-6Q inline Coconut shell carbon filters have 1/4" quick-connect connections and are suitable for Drinking water filtration applications...

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Original price $8.99 - Original price $8.99
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$8.99
$8.99 - $8.99
Current price $8.99
Original price $8.99 - Original price $8.99
Original price
$8.99
$8.99 - $8.99
Current price $8.99

Hydronix SDC-25-0505 polypropylene sediment filters have a particle retention Size of 5 microns and are used in residential and commercial water fi...

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Original price $8.99 - Original price $8.99
Original price
$8.99
$8.99 - $8.99
Current price $8.99
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