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Media

Reliable water treatment starts with high-quality filtration and softening cation media designed to restore system performance. Over time, resin and carbon beds lose efficiency, which can affect water clarity, taste, and hardness levels. Replacing media is a practical way to extend the life of your existing equipment without investing in a new system. This category features carefully selected media products that support both residential and light commercial water filtration needs. Each option is formulated to help maintain consistent water quality throughout your home or facility.

About Our Replacement Media Products

Our selection includes premium-grade cation ion exchange resin for water softeners in multiple cubic foot sizes. These resins target hardness minerals such as calcium and magnesium to reduce scale buildup in plumbing and appliances. Granular activated carbon media is also available to address chlorine, odors, and unwanted tastes in treated water. KDF and deionization resin options support specialized applications, including aquarium use and spot-free rinse systems. Compatible cartridge styles in standard and Big Blue sizes make integration simple for many common filtration setups.

Why Choose iFilters Media Products?

iFilters focuses on dependable replacement media products that meet high-performance standards. Inventory is kept in stock to support timely system maintenance and reduce downtime. Clear product details and sizing options help you select the correct media for your tank or cartridge. Auto ship availability simplifies routine replacements and supports long-term water care planning. Consistent quality and trusted brands give you confidence in every refill.

Shop filtration and softening cation media online today!

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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-...

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$150.00 - $150.00
$150.00
$150.00 - $150.00
$150.00
Auto Ship
iFilters

Water Softener Resin Media High Quality Replacement Cation Ion Exchange 1/2 CuFt

MED-CAT-025/2
in stock

$74.99 - $74.99
$74.99
$74.99 - $74.99
$74.99

Half a Cubic Foot, perfect for portable water softeners needing resin media replacement. 100% compatible replacement for any water softener system ...

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$74.99 - $74.99
$74.99
$74.99 - $74.99
$74.99
Auto Ship
iFilters

Water Softener Resin High Quality Replacement Cation 100% Ion Exchange 0.25 CuFt

MED-CAT-025
in stock

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

0.25 Cubic Foot, perfect for portable water softeners needing resin media replacement. 100% compatible replacement for any water softener system us...

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$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99
Auto Ship
Aquatrol MED-CAT100E Cation Resin (NSF) - Water Softening Resin Softener Media Quality Replacement 100% Ion Exchange 1CuFt
Aquatrol

Aquatrol MED-CAT100E Cation Resin (NSF) - Water Softening Resin Softener Media Quality Replacement 100% Ion Exchange 1CuFt

MED-CAT100E
in stock
$155.00 - $155.00
$155.00
$155.00 - $155.00
$155.00

Aquatrol CAT100E Cation Resin – 1 Cu. Ft. Premium Water Softening Cation Resin (NSF) The Aquatrol CAT100E Cation Resin is a high-purity, premium-gr...

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$155.00 - $155.00
$155.00
$155.00 - $155.00
$155.00
Auto Ship
Softening Resin Filter Cation Ion Exchange 4.5" x 20" Big Blue Size - IFilters
iFilters

Softening Resin Filter Cation Ion Exchange 4.5" x 20" Big Blue Size

CAT-4520
in stock

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

The CAT-4520 softening cation resin filter is used for the reduction of hard water using an ion exchange process. The CAT-4520 water softening filt...

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$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99
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...

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$128.98 - $128.98
$128.98
$128.98 - $128.98
$128.98
Auto Ship
Softening Filter Cartridge w/ High Quality NSF Certified Cation Resin 2.5" x 10" - IFilters
Hydronix

Softening Filter Cartridge w/ High Quality NSF Certified Cation Resin 2.5" x 10"

UDF-10C100E
in stock
$18.96 - $18.96
$18.96
$18.96 - $18.96
$18.96

The Hydronix UDF-10C100E Resin Water Softening cartridges are the best choice for your higher flow, water softening needs. Made with NSF certified ...

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$18.96 - $18.96
$18.96
$18.96 - $18.96
$18.96
DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 6L - IFilters
PRO+AQUA

DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 6L

MED-DI-3/2
Out of stock
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00

The Pro+Aqua MED-DI-3/2 offers 6 Liters (2 x 3 Liter bags) of mixed bed deionization (DI) resin media and is ideal for Aquariums as well as a spot-...

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$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
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DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 2L - IFilters
PRO+AQUA

DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 2L

MED-DI-1/2
in stock
$33.59 - $33.59
$33.59
$33.59 - $33.59
$33.59

The Pro+Aqua MED-DI-1/2 offers 2 Liters (2 x 1 Liter bags) of mixed bed deionization (DI) resin media and is ideal for Aquariums as well as a spot-...

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$33.59 - $33.59
$33.59
$33.59 - $33.59
$33.59
Auto Ship
Hydronix DI-4520C DI Deionization Resin TDS Reduction Cartridge 4.5"x20" - IFilters
Hydronix

Hydronix DI-4520C DI Deionization Resin TDS Reduction Cartridge 4.5"x20"

DI-4520C
in stock
$125.90 - $125.90
$125.90
$125.90 - $125.90
$125.90

Hydronix DI-4520C Deionization Resin TDS Reduction Cartridge – 4.5" x 20" The Hydronix DI-4520C Deionization (DI) Resin Cartridge is designed to re...

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$125.90 - $125.90
$125.90
$125.90 - $125.90
$125.90
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...

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$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
Auto Ship
DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 1L - IFilters
PRO+AQUA

DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 1L

MED-DI-1
in stock
$19.26 - $19.26
$19.26
$19.26 - $19.26
$19.26

The Pro+Aqua MED-DI-1 offers 1 Liter of mixed bed deionization (DI) resin media and is ideal for Aquariums as well as a spot-free rinse for your ca...

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$19.26 - $19.26
$19.26
$19.26 - $19.26
$19.26
DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 3L - IFilters
DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 3L - IFilters
PRO+AQUA

DI Resin Replacement Deionization Color Changing, TDS, Aquariums, Spot Free, 3L

MED-DI-3
Out of stock
$42.75 - $42.75
$42.75
$42.75 - $42.75
$42.75

The Pro+Aqua MED-DI-3 offers 3 Liters of mixed bed deionization (DI) resin media and is ideal for Aquariums as well as a spot-free rinse for your c...

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$42.75 - $42.75
$42.75
$42.75 - $42.75
$42.75
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