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Shop All Water Filters, Parts & Systems

Fresh, dependable water starts with the right setup, and iFilters makes it easy to find what fits your space. Water Filters, Parts & Systems in this collection cover everyday drinking needs, whole-home protection, and jobsite-ready solutions for commercial and industrial use. Browse by product type, filter size, or compatibility so replacements and upgrades stay simple. Options span sediment, carbon, reverse osmosis, and UV, giving you a clear path from problem to solution. Fast shipping and helpful support keep your project moving.

About iFilters Water Filtration Products

iFilters brings a one-stop catalog together, from complete whole-house filtration systems to specialized drinking water systems for sinks and dispensers. Commercial systems help support higher flow demands, while replacement filters keep performance consistent between service intervals. Parts like housings, fittings, adapters, and power supplies help you maintain, repair, or expand an existing setup without guesswork. Ultraviolet systems add an extra layer for applications that benefit from UV treatment. Tools and specialty systems round out the collection for unique installs, seasonal needs, and niche use cases.

Why Choose iFilters for Water Filtration Gear?

Confidence comes from selection, and this store is built around breadth and compatibility across many brands and applications. Auto Ship subscriptions make routine replacements easier, while discounts help reduce long-term ownership costs. Expert support is available when you need help choosing the right part, matching a cartridge, or planning a system refresh. Free shipping starts at qualifying order thresholds, and a satisfaction guarantee adds peace of mind at checkout.

Shop water filtration systems and parts online today!

Filters

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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...

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$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00
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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
Hydronix PMP-43622-01 Power Supply Transformer for PMP-300GPD Booster Pump
Aquatrol PMP-300GPD – 300 GPD Reverse Osmosis Booster Pump
Aquatrol

Aquatrol PMP-300GPD 300 GPD RO Booster Pump for 300 GPD RO Systems

PMP-300GPD
in stock

$178.00 - $178.00
$178.00
$178.00 - $178.00
$178.00

Aquatrol PMP-300GPD – 300 GPD Reverse Osmosis Booster Pump High-Performance RO Booster Pump for 300 GPD Systems The Aquatrol PMP-300GPD is a heavy-...

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$178.00 - $178.00
$178.00
$178.00 - $178.00
$178.00
Aquatrol IFA-07220F Circuit Board – OEM Replacement for 56E Softener & Filter Valves
Aquatrol

Aquatrol IFA-07220F Circuit Board for 56E Softener and Filter Valve

IFA-07220F
in stock
$149.95 - $149.95
$149.95
$149.95 - $149.95
$149.95

Aquatrol IFA-07220F Circuit Board – OEM Replacement for 56E Softener & Filter Valves The Aquatrol IFA-07220F Circuit Board is a genuine OEM rep...

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$149.95 - $149.95
$149.95
$149.95 - $149.95
$149.95
Hydronix HF3-CAP34BKPR Black Rib Cap with 3/4" NPT Ports & Pressure Relief Button
Hydronix

Hydronix HF3-CAP34BKPR Black Rib Cap with 3/4" NPT ports and Pressure Relief buttons

HF3-CAP34BKPR
in stock

$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99

Hydronix HF3-CAP34BKPR Black Rib Cap with 3/4" NPT Ports & Pressure Relief Button The Hydronix HF3-CAP34BKPR is an OEM replacement cap designed...

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$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
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Smart Pack Water Filters CB8 Carbon Block Water Filter Compatible with Amway E-84, E-85, A101, E-9225
Smart Pack

Smart Pack CB8 Replacement Filter – 0.5 Micron Carbon Block Under‑Sink Water Filter

IF-CB8
in stock

$43.07 - $43.07
$43.07
$43.07 - $43.07
$43.07

Enjoy fresher, cleaner water every day with the Smart Pack CB8 Carbon Block Water Filter, a reliable replacement for Amway E‑84, E‑85, A101, E‑9225...

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$43.07 - $43.07
$43.07
$43.07 - $43.07
$43.07
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SW5-4520 String Wound Sediment Water Filter Whole House or Commercial, 4.5 x 20, 5 Micron - IFilters
SW5-4520 String Wound Sediment Water Filter Whole House or Commercial, 4.5 x 20, 5 Micron - IFilters
iFilters

SW5-4520 String Wound Sediment Water Filter Whole House or Commercial, 4.5 x 20, 5 Micron

SW5-4520
in stock

$25.99 - $25.99
$25.99
$25.99 - $25.99
$25.99

The SW5-4520 Polypropylene String Wound Filters has a particle retention Size of 5 micron and are used in a residential and commercial water filt...

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$25.99 - $25.99
$25.99
$25.99 - $25.99
$25.99
Polaris Scientific Ultraviolet Water UV System New Style Ballast, 24W - 39W 110v - IFilters
Polaris Scientific

Polaris Scientific Ultraviolet Water UV System New Style Ballast, 24W - 39W 110v

BEB-2439
in stock

$41.74 - $41.74
$41.74
$41.74 - $41.74
$41.74

Polaris Scientific BEB-2439 ballast for the UVA-6C, UVA-8C and UVA-12C Ultraviolet UV Systems. 24W-39W 110V/220V Used with the GL24PP, GL32PP and ...

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$41.74 - $41.74
$41.74
$41.74 - $41.74
$41.74
FW-3 Big Blue Size Housing Wrench - IFilters
FW-3 Big Blue Size Housing Wrench - IFilters
Hydronix

FW-3 Big Blue Size Housing Wrench

FW-3
in stock

$6.00 - $6.00
$6.00
$6.00 - $6.00
$6.00

The FW-3 Wrench can be use to loosen Big Blue or Big Blue style filter housings when changing filters. The spanner wrench has four teeth. This FW-3...

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$6.00 - $6.00
$6.00
$6.00 - $6.00
$6.00
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Hydro Guard HDG-CB-8-38 (CB8), Amway E84, A101, E-9225 Compatible Carbon Block Water Filter
Hydro Guard

Hydro Guard HDG-CB-8-38 (CB8), Amway E84, A101, E-9225 Compatible Carbon Block Water Filter

HDG-CB-8-38
in stock

$35.84 - $35.84
$35.84
$35.84 - $35.84
$35.84

Hydro Guard HDG-CB8-38 Carbon Block Water Filter – Compatible with CB8, Amway E84, A101, & E-9225 The Hydro Guard HDG-CB8-38 Carbon Block Water...

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$35.84 - $35.84
$35.84
$35.84 - $35.84
$35.84
Everpure EV9612-32 Insurice i4000 2 Replacement Filter Cartridge - IFilters
Pentair

Everpure EV9612-32 Insurice i4000 2 Replacement Filter Cartridge

EV961232
Out of stock
$126.80 - $126.80
$126.80
$126.80 - $126.80
$126.80

$126.80 - $126.80
$126.80
$126.80 - $126.80
$126.80
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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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IF-P117 AP117 Compatible GAC Water Filter 4 Pack - IFilters
iFilters

IF-P117 AP117 Compatible GAC Water Filter 4 Pack

IF-P117/4
in stock

$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00

4 Pack of the Aqua-Pure AP117 Compatible Premium Carbon IF-P117 GAC Water Filter. Premium GAC Granular Activated Coconut Shell Carbon Removes Chlor...

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$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00
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Inline RO Post Fridge Ice Coconut GAC Water Filter 2000 Gal, 1/4" Quick Connect - IFilters
Hydronix

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

ICF-10Q
in stock

$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00

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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$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00
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Culligan CW5-BBS Compatible 5-Micron Sediment Cartridge – HD-950 Housing Replacement
Culligan

Culligan CW5-BBS Compatible 5-Micron Sediment Cartridge

CW5-BBS
in stock

$0.00 - $0.00
$0.00
$14.99
$14.99 - $14.99
$14.99

Culligan CW5-BBS Compatible 5-Micron Sediment Cartridge – HD-950 Housing Replacement The Culligan CW5-BBS Compatible 5-Micron Sediment Cartridge is...

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$0.00 - $0.00
$0.00
$14.99
$14.99 - $14.99
$14.99
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Cover image
Sediment Water Filter for Whole House, RO Systems, Hydroponics, 2.5" x 20" 5 μm - IFilters
Hydronix

Sediment Water Filter for Whole House, RO Systems, Hydroponics, 2.5" x 20" 5 μm

SDC-25-2005
in stock
$7.50 - $7.50
$7.50
$7.50 - $7.50
$7.50

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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$7.50 - $7.50
$7.50
$7.50 - $7.50
$7.50
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4 Pk Carbon Block Water Filter CTO Whole House RO DI Hydroponics 5 μm 10" x 2.5" - IFilters
4 Pk Carbon Block Water Filter CTO Whole House RO DI Hydroponics 5 μm 10" x 2.5" - IFilters
Hydronix

4 Pk Carbon Block Water Filter CTO Whole House RO DI Hydroponics 5 μm 10" x 2.5"

CB-25-1005/4
in stock
$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99

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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$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99
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6 PACK - Sediment Pleated Water Filter - Washable & Reusable, 4.5" x 10", 20 μm
6 PACK - Sediment Pleated Water Filter - Washable & Reusable, 4.5" x 10", 20 μm
Hydronix

6 PACK - Sediment Pleated Water Filter - Washable & Reusable, 4.5" x 10", 20 μm

SPC-45-1020/6
in stock

$75.00 - $75.00
$75.00
$75.00 - $75.00
$75.00

Hydronix SPC series 4.5" x 10" 20 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleate...

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$75.00 - $75.00
$75.00
$75.00 - $75.00
$75.00
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iFilters

SW5-4510 Whole House Sediment String Wound Water Filter Cartridge, 5 micron 4.5" x 10"

SW5-4510
in stock

$11.99 - $11.99
$11.99
$11.99 - $11.99
$11.99

The SW5-4510 Polypropylene String Wound Filters has a particle retention Size of 5 micron and are used in a residential and commercial water filtra...

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$11.99 - $11.99
$11.99
$11.99 - $11.99
$11.99
Aquatrol RO-6.0-W14 6-Gallon Pre-Pressurized Reverse Osmosis Water Storage Tank – White
iFilters

RO-6.0-W14 Reverse Osmosis Water Storage Tank 6 Gallon (5.5 Draw-Down) - White, 1/4" Port

RO-6.0-W14
in stock

$48.99 - $48.99
$48.99
$48.99 - $48.99
$48.99

$48.99 - $48.99
$48.99
$48.99 - $48.99
$48.99
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(20 Pack) Hydronix SGC-25-1005 - 5 Micron Sediment Filters Replaces Aqua-Pure AP110 WHCF-GD05 FPMBG-5-975
(20 Pack) Hydronix SGC-25-1005 - 5 Micron Sediment Filters Replaces Aqua-Pure AP110 WHCF-GD05 FPMBG-5-975
Hydronix

(20 Pack) Hydronix SGC-25-1005 - 5 Micron Sediment Filters Replaces Aqua-Pure AP110 WHCF-GD05 FPMBG-5-975

SGC-25-1005/20
in stock

$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

Grooved Melt Blown Polypropylene Filter Features and Benefits Gradient Density, Multi-Layered, Melt Blown Sediment Filter Cartridge. Larger particl...

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$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
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Hydronix CB-45-1005 Whole House Carbon Block Water Filter CTO 4.5" x 10" - 5 Micron - IFilters
CB-45-1005 Variations
Hydronix

Hydronix CB-45-1005 Whole House Carbon Block Water Filter CTO 4.5" x 10" - 5 Micron

CB-45-1005/8
in stock
$139.00 - $139.00
$139.00
$139.00 - $139.00
$139.00

8 Pack Hydronix CB-45-1005 Coconut Shell Carbon Block water filter cartridge measures 4.5" x 10" standard. This filters offers a 5 micron nominal f...

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$139.00 - $139.00
$139.00
$139.00 - $139.00
$139.00
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Whole House Coconut Shell Carbon GAC Water Filter 4.5 x 20 - IFilters
Hydronix

Whole House Coconut Shell Carbon GAC Water Filter 4.5 x 20

UDF-20BP
in stock

$30.95 - $30.95
$30.95
$30.95 - $30.95
$30.95

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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$30.95 - $30.95
$30.95
$30.95 - $30.95
$30.95
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Pleated Sediment Water Filter Home or Commercial, Reusable 4.5" x 20" - 5 μm - IFilters
Hydronix

Pleated Sediment Water Filter Home or Commercial, Reusable 4.5" x 20" - 5 μm

SPC-45-2005
in stock
$24.90 - $24.90
$24.90
$24.90 - $24.90
$24.90

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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$24.90 - $24.90
$24.90
$24.90 - $24.90
$24.90
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