Skip to content

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

$
$
Auto Ship
Aquatrol MED-CAT110E - Premium Grade cation resin
Aquatrol

Aquatrol MED-CAT110E - Premium Grade Cation Resin - 10% Crosslink Premium Grade Water Softening Resin, Aquatrol 1 CuFt

MED-CAT110E
in stock

$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00

Aquatrol CAT110E – 10% Crosslink Premium Grade Cation Resin for Water Softening (1 CuFt) The Aquatrol CAT110E Premium Grade Cation Resin is a high-...

View full details
$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00
Auto Ship
Aquatrol MED-GCS-1240 – High-Performance Granular Activated Carbon (GAC), 1 CU. FT.
Aquatrol

Aquatrol MED-GCS-1240 High-Performance Activated Granular Activated Carbon GAC, 1 CUFT

MED-GCS-1240
in stock
$128.98 - $128.98
$128.98
$128.98 - $128.98
$128.98

Aquatrol MED-GCS-1240 – High-Performance Granular Activated Carbon (GAC), 1 CUFT The Aquatrol MED-GCS-1240 is a premium-grade coconut shell granula...

View full details
$128.98 - $128.98
$128.98
$128.98 - $128.98
$128.98
Auto Ship
Aquatrol MED-MB9IG – Mixed Bed Deionization (DI) Resin Media, 1 CuFt
Aquatrol

Aquatrol MED-MB9IG DI Mixed Bed Deionization TDS Filtration Resin Media, 1 CuFt

MED-MB9IG
in stock
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00

Aquatrol MED-MB9IG – Mixed Bed Deionization (DI) Resin Media, 1 CuFt The Aquatrol MED-MB9IG is a high-performance mixed bed deionization (DI) resin...

View full details
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
Auto Ship
Arsenic & Chlorine Carbon Block Water Filter Cartridge, 5 micron 2.5 x 10 - IFilters
Hydronix

Arsenic & Chlorine Carbon Block Water Filter Cartridge, 5 micron 2.5 x 10

CB-AR-2510
in stock

$27.99 - $27.99
$27.99
$27.99 - $27.99
$27.99

The Hydronix CB-AR-2510 Arsenic filter has a particle retention Size of 5 microns, and are ideal for drinking water filtration applications. The Hy...

View full details
$27.99 - $27.99
$27.99
$27.99 - $27.99
$27.99
Auto Ship
Carbon Infused Replacement Filter For PRO-SCI and PRO-100-E ELITE GEN2 Whole-House Well Water - IFilters
PRO+AQUA

Carbon Infused Replacement Filter For PRO-SCI and PRO-100-E ELITE GEN2 Whole-House Well Water

FC-19-ACB
in stock

$69.95 - $69.95
$69.95
$69.95 - $69.95
$69.95

Ensure your water filtration system continues to deliver exceptional performance with the FC-19-ACB replacement filter. Engineered with Activated C...

View full details
$69.95 - $69.95
$69.95
$69.95 - $69.95
$69.95
Auto Ship
CB5-4510 Whole House Carbon Block Water Filter, 5 Micron 4.5"x10" - IFilters
iFilters

CB5-4510 Whole House Carbon Block Water Filter, 5 Micron 4.5"x10"

CB5-4510
in stock

$29.49 - $29.49
$29.49
$29.49 - $29.49
$29.49

The CB5-4510 carbon block whole house filters is have a particle retention Size of 5 microns. Suitable for Drinking water filtration applications a...

View full details
$29.49 - $29.49
$29.49
$29.49 - $29.49
$29.49
Auto Ship
CB5-4520 Whole House Carbon Block Water Filter, 5 Micron 4.5"x20" - IFilters
iFilters

CB5-4520 Whole House Carbon Block Water Filter, 5 Micron 4.5"x20"

CB5-4520
in stock

$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99

The CB5-4520 carbon block whole house filters have a particle retention Size of 5 microns. Perfect for Drinking water filtration as well as Whole H...

View full details
$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99
Auto Ship
Chlorine CTO Heavy Metals Scale Reduction Water Filter .5 lb KDF 2.5x10 - IFilters
Hydronix

Chlorine CTO Heavy Metals Scale Reduction Water Filter .5 lb KDF 2.5x10

UDF-10KDF.5
in stock
$15.35 - $15.35
$15.35
$15.35 - $15.35
$15.35

The Hydronix UDF-10KDF.5 is a 2.5" x 10" KDF replacement with 0.5 lbs of KDF media. For use in many water filter systems, especially whole-house fi...

View full details
$15.35 - $15.35
$15.35
$15.35 - $15.35
$15.35
Auto Ship
Chlorine CTO Heavy Metals Scale Reduction Water Filter 1 lb KDF 2.5x10 - IFilters
Hydronix

Chlorine CTO Heavy Metals Scale Reduction Water Filter 1 lb KDF 2.5x10

UDF-10KDF1
in stock
$27.48 - $27.48
$27.48
$27.48 - $27.48
$27.48

The Hydronix UDF-10KDF1 is a 2.5" x 10" KDF replacement with 1 lbs of KDF media. For use in many water filter systems, especially whole house filte...

View full details
$27.48 - $27.48
$27.48
$27.48 - $27.48
$27.48
Auto Ship
Chlorine CTO Heavy Metals Scale Reduction Water Filter 2 lb KDF 2.5x 10 - IFilters
Hydronix

Chlorine CTO Heavy Metals Scale Reduction Water Filter 2 lb KDF 2.5x 10

UDF-10KDF2
in stock
$43.66 - $43.66
$43.66
$43.66 - $43.66
$43.66

The Hydronix UDF-10KDF2 is a 2.5" x 10" KDF replacement with 2 lbs of KDF media. For use in many water filter systems, especially whole house filte...

View full details
$43.66 - $43.66
$43.66
$43.66 - $43.66
$43.66
Auto Ship
Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 10
Hydronix

Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 10

SMCB-2510
in stock

$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00

Hydronix SMCB-2510 carbon block filters are NSF/ANSI standard 42 certified for Material and structural Safety. SMCB-2520 filters have a particle re...

View full details
$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00
Auto Ship
Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 20 - IFilters
Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 20 - IFilters
Hydronix

Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 20

SMCB-2520
in stock

$23.74 - $23.74
$23.74
$23.74 - $23.74
$23.74

Hydronix SMCB-2520 carbon block filters are NSF/ANSI standard 42 certified for Material and structural Safety. SMCB-2520 filters have a particle re...

View full details
$23.74 - $23.74
$23.74
$23.74 - $23.74
$23.74
Auto Ship
Coconut Shell GAC Water Filter RO Undersink Countertop Drinking Systems 2.5 x 10
Hydronix

Coconut Shell GAC Water Filter RO Undersink Countertop Drinking Systems 2.5 x 10

UDF-10
in stock
$8.12 - $8.12
$8.12
$8.12 - $8.12
$8.12

The Hydronix UDF-10 granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction needs....

View full details
$8.12 - $8.12
$8.12
$8.12 - $8.12
$8.12
Auto Ship
Coconut Shell GAC Water Filter Whole House Commercial or Industrial - 2.5" x 20"
Hydronix

Coconut Shell GAC Water Filter Whole House Commercial or Industrial - 2.5" x 20"

UDF-20
in stock
$19.82 - $19.82
$19.82
$19.82 - $19.82
$19.82

The Hydronix UDF-20 granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction needs....

View full details
$19.82 - $19.82
$19.82
$19.82 - $19.82
$19.82
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30" - 1 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30" - 1 μm

SDC-25-3001
in stock
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06

Hydronix SDC-25-3001 polypropylene sediment filters have a particle retention Size of 1 Micron and is used in a residential and commercial water fi...

View full details
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30" - 5 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30" - 5 μm

SDC-25-3005
in stock
$12.88 - $12.88
$12.88
$12.88 - $12.88
$12.88

The Hydronix SDC-25-3005 polypropylene sediment filter is a 5 micron rated filter. Its universal standard size fits any standard Reverse Osmosis, W...

View full details
$12.88 - $12.88
$12.88
$12.88 - $12.88
$12.88
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30", 10 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30", 10 μm

SDC-25-3010
in stock
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06

Hydronix SDC-25-3010 polypropylene sediment filters have a particle retention Size of 10 microns and are used in residential and commercial water f...

View full details
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30", 25 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30", 25 μm

SDC-25-3025
in stock
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06

Hydronix SDC-25-3025 polypropylene sediment filters have a particle retention Size of 25 microns and are used in residential and commercial water f...

View full details
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30", 75 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 30", 75 μm

SDC-25-3075
in stock

$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06

Hydronix SDC-25-3075 polypropylene sediment filters have a particle retention Size of 75 micron and is used in a residential and commercial water f...

View full details
$13.06 - $13.06
$13.06
$13.06 - $13.06
$13.06
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40" - 1 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40" - 1 μm

SDC-25-4001
in stock
$19.45 - $19.45
$19.45
$19.45 - $19.45
$19.45

Hydronix SDC-25-4001 polypropylene sediment filters have a particle retention Size of 1 Micron and is used in a residential and commercial water fi...

View full details
$19.45 - $19.45
$19.45
$19.45 - $19.45
$19.45
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40" - 5 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40" - 5 μm

SDC-25-4005
in stock
$19.20 - $19.20
$19.20
$19.20 - $19.20
$19.20

Hydronix SDC-25-4005 polypropylene sediment filters have a particle retention size of 5 micron and is used in a residential and commercial water fi...

View full details
$19.20 - $19.20
$19.20
$19.20 - $19.20
$19.20
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40", 10 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40", 10 μm

SDC-25-4010
in stock

$19.44 - $19.44
$19.44
$19.44 - $19.44
$19.44

Hydronix SDC-25-4010 polypropylene sediment filters have a particle retention Size of 10 micron and is used in a residential and commercial water f...

View full details
$19.44 - $19.44
$19.44
$19.44 - $19.44
$19.44
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40", 25 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40", 25 μm

SDC-25-4025
in stock
$19.44 - $19.44
$19.44
$19.44 - $19.44
$19.44

Hydronix SDC-25-4025 polypropylene sediment filters have a particle retention Size of 25 micron and is used in a residential and commercial water f...

View full details
$19.44 - $19.44
$19.44
$19.44 - $19.44
$19.44
Auto Ship
Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40", 50 μm - IFilters
Hydronix

Commercial, Industrial NSF Polypropylene Sediment Water Filter 2.5" x 40", 50 μm

SDC-25-4050
in stock
$19.44 - $19.44
$19.44
$19.44 - $19.44
$19.44

Hydronix SDC-25-4050 polypropylene sediment filters have a particle retention Size of 50 micron and is used in a residential and commercial water f...

View full details
$19.44 - $19.44
$19.44
$19.44 - $19.44
$19.44
Autoship Popup
{"statementLink":"","footerHtml":"","hideMobile":false,"hideTrigger":false,"disableBgProcess":false,"language":"en","position":"right","leadColor":"#146ff8","triggerColor":"#146ff8","triggerRadius":"50%","triggerPositionX":"right","triggerPositionY":"bottom","triggerIcon":"people","triggerSize":"medium","triggerOffsetX":95,"triggerOffsetY":20,"mobile":{"triggerSize":"small","triggerPositionX":"right","triggerPositionY":"bottom","triggerOffsetX":90,"triggerOffsetY":10,"triggerRadius":"50%"}}