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Water Filter & Media Replacements

Clean water depends on timely filter changes. Water Filter & Media Replacements product options make it simple to stay on schedule without the stress of manual reordering. Automatic delivery keeps your system performing as designed while helping reduce buildup from sediment, chlorine, and other common contaminants. Every shipment arrives when you need it, so there is no interruption to your water supply. Pure water becomes part of your routine with zero hassle.

About Water Filter & Media Replacement Products

Our collection includes sediment cartridges, carbon block filters, reverse osmosis sets, and specialty media for whole-house and drinking water systems. Popular options fit standard sizes such as 2.5 by 10-inch and 4.5 by 20-inch housings. Replacement sets are available for multi-stage systems, including combinations that target rust, heavy metals, and chemical impurities. Genuine OEM and compatible alternatives allow flexibility without sacrificing performance. Each product listing includes compatibility details to simplify selection.

Subscription management is straightforward and flexible. Customers can adjust delivery frequency, update products, or pause shipments at any time. AutoShip offers savings on every order and an added discount on the first subscription purchase. This approach removes guesswork and supports steady filtration results.

Why Choose iFilters for Replacement Filter Products?

iFilters focuses on broad compatibility, dependable construction, and convenient service. In stock inventory supports fast fulfillment, and many products feature verified customer reviews. Subscription savings reward long-term maintenance habits while helping control costs. Clear product descriptions reduce confusion during ordering. Dedicated support is available to assist with selection questions.

Shop Water Filter & Media Replacement products online today!

Filters

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Reverse Osmosis Double Capacity Replacement Pre-Filter Set, Stage 1-3, Standard Size - IFilters
PRO+AQUA

Reverse Osmosis Double Capacity Replacement Pre-Filter Set, Stage 1-3, Standard Size

FC-ROSTD-PF
Only 3 left!
$49.85 - $49.85
$49.85
$49.85 - $49.85
$49.85

Pro+Aqua Reverse Osmosis Replacement Pre-Filter Set. Includes 1 sediment filter (Stage 1) and 2 triple capacity carbon block filters (Stage 2-3). S...

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$49.85 - $49.85
$49.85
$49.85 - $49.85
$49.85
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Reverse Osmosis Drinking Filter Systems Coconut Shell Carbon Water Filter 10 μm
Hydronix

Reverse Osmosis Drinking Filter Systems Coconut Shell Carbon Water Filter 10 μm

CB-25-1010
in stock
$10.99 - $10.99
$10.99
$10.99 - $10.99
$10.99

The Hydronix CB-25-1010 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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$10.99 - $10.99
$10.99
$10.99 - $10.99
$10.99
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Reverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 50 GPD Membrane - IFilters
Reverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 50 GPD Membrane - IFilters
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 50 GPD Membrane

RO-50KIT4
in stock

$37.00 - $37.00
$37.00
$37.00 - $37.00
$37.00

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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$37.00 - $37.00
$37.00
$37.00 - $37.00
$37.00
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Reverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 75 GPD Membrane - IFilters
Reverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 75 GPD Membrane - IFilters
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 75 GPD Membrane

RO-75KIT4
in stock

$37.16 - $37.16
$37.16
$37.16 - $37.16
$37.16

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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$37.16 - $37.16
$37.16
$37.16 - $37.16
$37.16
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Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs w/ 75 GPD Membrane
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs w/ 75 GPD Membrane

RO-75KIT
in stock
$41.15 - $41.15
$41.15
$41.15 - $41.15
$41.15

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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$41.15 - $41.15
$41.15
$41.15 - $41.15
$41.15
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Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 100 GPD Membrane, QC - IFilters
Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 100 GPD Membrane, QC - IFilters
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 100 GPD Membrane, QC

RO-100KITQ
in stock

$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99

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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$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99
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Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 50 GPD Membrane, 3/8" QC - IFilters
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 50 GPD Membrane, 3/8" QC

RO-50KITQ38
in stock
$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00

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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$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00
Auto Ship
Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 50 GPD Membrane, QC - IFilters
Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 50 GPD Membrane, QC - IFilters
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 50 GPD Membrane, QC

RO-50KITQ
in stock
$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00

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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$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00
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Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 75 GPD Membrane, QC - IFilters
Smart Pack

Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs, 75 GPD Membrane, QC

RO-75KITQ
in stock
$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

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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$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95
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Reverse Osmosis Replacement Pre Filters Quality Sediment & Carbon, 3 Pack 2.5x10
Hydronix

Reverse Osmosis Replacement Pre Filters Quality Sediment & Carbon, 3 Pack 2.5x10

RO-3PK-V2
in stock
$19.50 - $19.50
$19.50
$19.50 - $19.50
$19.50

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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$19.50 - $19.50
$19.50
$19.50 - $19.50
$19.50
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RF-2510 Dual Radial Flow Cartridge Sediment & Carbon, RFC-93 RFC93 comparable - IFilters
iFilters

RF-2510 Dual Radial Flow Cartridge Sediment & Carbon, RFC-93 RFC93 comparable

RF-2510
in stock
$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99

The iFilters RF-2510 radial flow Sediment and Carbon Filter (Dual Filtration) are 10 inch x 2.5 inch dual purpose filters. The iFilters RF-2510 fil...

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$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99
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RF-2520 Dual Radial Flow Cartridge Sediment & Carbon, RFC-20 RFC20 comparable - IFilters
iFilters

RF-2520 Dual Radial Flow Cartridge Sediment & Carbon, RFC-20 RFC20 comparable

RF-2520
in stock
$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99

The iFilters RF-2520 radial flow Sediment and Carbon Filter (Dual Filtration) are 20 inch x 2.5 inch dual purpose filters. The iFilters RF-2520 fil...

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$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99
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RO Post Polishing Fridge Ice Inline Coconut GAC Water Filter, 2000 Gal, 1/4" NPT
Hydronix

RO Post Polishing Fridge Ice Inline Coconut GAC Water Filter, 2000 Gal, 1/4" NPT

ICF-10
in stock
$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00

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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$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00
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RP-3500 Replacement Water Filter, 1000 Gal, Compatible with Frescapure 3500 WF0451 - IFilters
RP-3500 Variations
iFilters

RP-3500 Replacement Water Filter, 1000 Gal, Compatible with Frescapure 3500 WF0451

RP-3500
in stock

$59.95 - $59.95
$59.95
$59.95 - $59.95
$59.95

iFilters RP-3500 is a 100% compatible alternative replacement to the WF0451 filter used in the RP 3500 water filtration systems. Made from certifie...

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$59.95 - $59.95
$59.95
$59.95 - $59.95
$59.95
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Sediment Depth Water Filter Cartridge NSF Poly Commercial / Industrial 30", 5 μm
Hydronix

Sediment Depth Water Filter Cartridge NSF Poly Commercial / Industrial 30", 5 μm

SBC-25-3005
in stock
$17.20 - $17.20
$17.20
$17.20 - $17.20
$17.20

Hydronix sbc-25-3001 polypropylene sediment bonded depth filters have a particle retention Size of 1 Micron and are used in a residential and comme...

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$17.20 - $17.20
$17.20
$17.20 - $17.20
$17.20
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Sediment Depth Water Filter Cartridge NSF Poly Commercial Industrial 30", 1 μm
Hydronix

Sediment Depth Water Filter Cartridge NSF Poly Commercial Industrial 30", 1 μm

SBC-25-3001
in stock
$17.28 - $17.28
$17.28
$17.28 - $17.28
$17.28

Hydronix sbc-25-3005 polypropylene sediment bonded depth filters have a particle retention Size of 5 micron and are used in a residential and comme...

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$17.28 - $17.28
$17.28
$17.28 - $17.28
$17.28
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Sediment Depth Water Filter Cartridge NSF Poly Commercial Industrial 40" - 1 μm - IFilters
Hydronix

Sediment Depth Water Filter Cartridge NSF Poly Commercial Industrial 40" - 1 μm

SBC-25-4001
in stock
$23.04 - $23.04
$23.04
$23.04 - $23.04
$23.04

Hydronix sbc-25-4005 polypropylene sediment bonded depth filters have a particle retention Size of 5 micron and are used in a residential and comme...

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$23.04 - $23.04
$23.04
$23.04 - $23.04
$23.04
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Sediment Depth Water Filter Cartridge NSF Poly Commercial Industrial 40", 5 μm - IFilters
Hydronix

Sediment Depth Water Filter Cartridge NSF Poly Commercial Industrial 40", 5 μm

SBC-25-4005
in stock

$22.96 - $22.96
$22.96
$22.96 - $22.96
$22.96

Hydronix SBC-25-4001 polypropylene sediment bonded depth filters have a particle retention size of 1 Micron and are used in a residential and comme...

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$22.96 - $22.96
$22.96
$22.96 - $22.96
$22.96
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Sediment Depth Water Filter Cartridge Whole House Commercial RO Systems 20" 1 μm
Hydronix

Sediment Depth Water Filter Cartridge Whole House Commercial RO Systems 20" 1 μm

SBC-25-2001
in stock
$9.28 - $9.28
$9.28
$9.28 - $9.28
$9.28

Hydronix SBC-25-2001 polypropylene sediment bonded depth filters have a particle retention size of 1 Micron and are used in residential and commerc...

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$9.28 - $9.28
$9.28
$9.28 - $9.28
$9.28
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Sediment Depth Water Filter Cartridge Whole House Commercial RO Systems 20" 5 μm - IFilters
Hydronix

Sediment Depth Water Filter Cartridge Whole House Commercial RO Systems 20" 5 μm

SBC-25-2005
in stock
$11.86 - $11.86
$11.86
$11.86 - $11.86
$11.86

Hydronix SBC-25-2005 polypropylene sediment bonded depth filters have a particle retention Size of 5 micron and are used in a residential and comme...

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$11.86 - $11.86
$11.86
$11.86 - $11.86
$11.86
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Sediment Depth Water Filter Cartridge Whole House RO Drinking Water 10", 1 μm
Hydronix

Sediment Depth Water Filter Cartridge Whole House RO Drinking Water 10", 1 μm

SBC-25-1001
in stock
$6.00 - $6.00
$6.00
$6.00 - $6.00
$6.00

Hydronix SBC-25-1001 polypropylene sediment bonded depth filters have a particle retention size of 1 Micron and are used in a residential and comme...

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$6.00 - $6.00
$6.00
$6.00 - $6.00
$6.00
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Sediment Depth Water Filter Cartridge Whole House RO Drinking Water 10", 5 μm
Hydronix

Sediment Depth Water Filter Cartridge Whole House RO Drinking Water 10", 5 μm

SBC-25-1005
in stock

$9.58 - $9.58
$9.58
$9.58 - $9.58
$9.58

Hydronix SBC-25-1005 polypropylene sediment bonded depth filters have a particle retention size of 5 microns and are used in residential and commer...

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$9.58 - $9.58
$9.58
$9.58 - $9.58
$9.58
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Sediment Grooved Water Filter Cartridge 2.5" x 10" 5 μm - Replaces AP110 - IFilters
Hydronix

Sediment Grooved Water Filter Cartridge 2.5" x 10" 5 μm - Replaces AP110

SGC-25-1005
in stock
$8.31 - $8.31
$8.31
$8.31 - $8.31
$8.31

Hydronix SGC-25-1005 filter cartridges are 2.5” dia x 9.875” L and are made of 100% pure polypropylene material. Hydronix SGC-25-1005 filters are d...

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$8.31 - $8.31
$8.31
$8.31 - $8.31
$8.31
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Sediment Pleated Water Filter City or Well Water, Washable 4.5" x 20", 30 Micron - IFilters
Sediment Pleated Water Filter City or Well Water, Washable 4.5" x 20", 30 Micron - IFilters
iFilters

Sediment Pleated Water Filter City or Well Water, Washable 4.5" x 20", 30 Micron

SP30-4520
in stock

$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99

The SP30-4520 4.5" x 20" 30-micron polyester pleated cartridges are manufactured from durable polyester to provide a superior pleated Filter that i...

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$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99
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