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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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Hydronix Long Reach RO or Filtered Water Faucet, Chrome w/ Air Gap - IFilters
Hydronix

Hydronix Long Reach RO or Filtered Water Faucet, Chrome w/ Air Gap

LF-BLRAG
in stock
$19.78 - $19.78
$19.78
$19.78 - $19.78
$19.78

The Hydronix LF-BLRAG long reach air gap faucet is a chrome plated faucet that can be used in reverse Osmosis and Drinking water systems. The LF-BL...

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$19.78 - $19.78
$19.78
$19.78 - $19.78
$19.78
Polaris Scientific QS48HO – Replacement Quartz Sleeve for UVA-418HO UV System
Polaris Scientific

Polaris Scientific UV QS48HO Replacement Quartz Sleeve for UVA-418HO System

QS48HO
in stock
$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

Polaris Scientific QS48HO – Replacement Quartz Sleeve for UVA-418HO UV System The Polaris Scientific QS48HO is an OEM quartz sleeve designed for th...

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$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95
PRO+AQUA PRO-RO-IV 4000 GPD
PRO+AQUA PRO-RO-IV 4000 GPD Commercial Reverse Osmosis System – Ultra-Pure RO Water for Hydroponics, Breweries & More
PRO+AQUA

PRO+AQUA PRO-RO-IV 4000 GPD Commercial Reverse Osmosis System, Hydroponics, Breweries, Coffee, Teas

PRO-RO-IV
In stock

$4,459.95 - $4,459.95
$4,459.95
$4,459.95 - $4,459.95
$4,459.95

PRO+AQUA PRO-RO-IV 4000 GPD Commercial Reverse Osmosis System – Ultra-Pure RO Water for Hydroponics, Breweries & More The PRO+AQUA PRO-RO-IV 40...

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$4,459.95 - $4,459.95
$4,459.95
$4,459.95 - $4,459.95
$4,459.95
1/4" Quick Connect Drain Saddle For RO Systems - IFilters
Hydronix

1/4" Quick Connect Drain Saddle For RO Systems

DS-14QC
in stock
$6.40 - $6.40
$6.40
$6.40 - $6.40
$6.40

1/4" Drain Saddle for use with Reverse Osmosis systems. Compatible with all standard RO systems using 1/4" tubing including US Water RO Systems, US...

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$6.40 - $6.40
$6.40
$6.40 - $6.40
$6.40
1/2" OD Black Polyethylene Tubing - 250 Ft - IFilters
Hydrofit

1/2" OD Black Polyethylene Tubing - 250 Ft

PT08-BK-0250
in stock
$70.50 - $70.50
$70.50
$70.50 - $70.50
$70.50

The PT08-BK-0250 Black Polyethylene tubing is manufactured from top quality, low density materials. The PT08-BK-0250 is ideal for a variety of uses...

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$70.50 - $70.50
$70.50
$70.50 - $70.50
$70.50
Auto Ship
Poly-Ray Pleated Silicone, 0.2m Silicone Gasket DOE 10" - IFilters
HydroScientific

Poly-Ray Pleated Silicone, 0.2m Silicone Gasket DOE 10"

AR0020SF1A
in stock

$89.82 - $89.82
$89.82
$89.82 - $89.82
$89.82

HydroScientific AR Series Absolute Rated Pleated Filters are Beta 5000 Absolute rated filters. Made from 100% pure Polypropylene HydroScientific AR...

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$89.82 - $89.82
$89.82
$89.82 - $89.82
$89.82
HDF-SRT0404 1/4" Tube x 1/4" Tube x 1/4" Stem - IFilters
Hydrofit

HDF-SRT0404 1/4" Tube x 1/4" Tube x 1/4" Stem

HDF-SRT0404
in stock
$1.90 - $1.90
$1.90
$1.90 - $1.90
$1.90

The Hydrofit HDF-SRT0404 1/4" Tube x 1/4" Tube x 1/4" Stem are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide al...

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$1.90 - $1.90
$1.90
$1.90 - $1.90
$1.90
Hydronix SPV-4040-12 SS Membrane Housing 4"x40" 1/2" Ports - IFilters
Hydronix

Hydronix SPV-4040-12 SS Membrane Housing 4"x40" 1/2" Ports

SPV-4040-12
in stock

$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99

The Hydronix SPV-4040-12 4" x 40" Stainless Steel Pressure Vessel is designed for use in commercial reverse osmosis, nanofiltration and ultrafiltra...

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$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99
Auto Ship
TFM-75-CV Compatible Fit IF-TFM-75EB Reverse Osmosis Membrane - IFilters
iFilters

TFM-75-CV Compatible Fit IF-TFM-75EB Reverse Osmosis Membrane

IF-TFM-75EB
in stock

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

The IF-TFM-75EB is a compatible replacement for the Everpure TFM-75-CV, TFM-75EB Reverse Osmosis Membrane. Features a 1/4 inch Quick Connect fittin...

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$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99
Auto Ship
Sediment Water Filters Smart Pack RO DI Whole House Ice, 10 μm 2.5" x 10" 4 Pack
Smart Pack

Sediment Water Filters Smart Pack RO DI Whole House Ice, 10 μm 2.5" x 10" 4 Pack

IF4-SDC-25-1010
in stock
$17.99 - $17.99
$17.99
$17.99 - $17.99
$17.99

The 10 Micron Smart Packs 2.5"x10" NSF Certified Sediment Premium Filters are a smart economical solution to pre-filtration for many applications. ...

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$17.99 - $17.99
$17.99
$17.99 - $17.99
$17.99
Hydronix HF45-20BLBK15 4.5" x 20" Water Filter Housing, Whole House Commercial or Industrial - 1.5" Port
Hydronix HF45-20BLBK15 4.5" x 20" Water Filter Housing, Whole House Commercial or Industrial - 1.5" Port
Hydronix

Hydronix HF45-20BLBK15 4.5" x 20" Water Filter Housing, Whole House Commercial or Industrial - 1.5" Port

HF45-20BLBK15
in stock
$61.00 - $61.00
$61.00
$61.00 - $61.00
$61.00

Hydronix HF45 Series Commercial Filter Housings are high durability commercial filter housings for 20" length cartridges. HF45 Series housings have...

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$61.00 - $61.00
$61.00
$61.00 - $61.00
$61.00
Auto Ship
HDG-SED-AC5 Variations
Smart Pack

Culligan AC-30 AC-15 Compatible Sediment Pre Filters Smart Pack - 4 Pack

IF4-HDG-SED-AC5
in stock
$23.84 - $23.84
$23.84
$23.84 - $23.84
$23.84

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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$23.84 - $23.84
$23.84
$23.84 - $23.84
$23.84
Reverse Osmosis Membrane Flush Kit Valve For 50 GPD RO Systems, 1/4" QC Ports - IFilters
iFilters

Reverse Osmosis Membrane Flush Kit Valve For 50 GPD RO Systems, 1/4" QC Ports

RO-FLUSH-50
in stock
$10.50 - $10.50
$10.50
$10.50 - $10.50
$10.50

Significantly enhance the life of your RO Membrane with the NSF iFilters Flush Valve. This flush valve provides a bypass to purge contaminates in t...

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$10.50 - $10.50
$10.50
$10.50 - $10.50
$10.50
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...

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$43.66 - $43.66
$43.66
$43.66 - $43.66
$43.66
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...

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$27.48 - $27.48
$27.48
$27.48 - $27.48
$27.48
Auto Ship
String Wound Water Filter Whole House Well Commercial BB Size 4.5" x 20" - 50 μm
Hydronix

String Wound Water Filter Whole House Well Commercial BB Size 4.5" x 20" - 50 μm

SWC-45-2050
in stock
$28.00 - $28.00
$28.00
$28.00 - $28.00
$28.00

The Hydronix SWC-45-2050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...

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$28.00 - $28.00
$28.00
$28.00 - $28.00
$28.00
Auto Ship
Whole House, Well Sediment String Wound Water Filter 10 micron 10"
Hydronix

Whole House, Well Sediment String Wound Water Filter 10 micron 10"

SWC-45-1010
in stock
$17.95 - $17.95
$17.95
$17.95 - $17.95
$17.95

The Hydronix SWC-45-1010 polypropylene String wound filters have a particle retention Size of 10 micron and are used in a residential and commercia...

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$17.95 - $17.95
$17.95
$17.95 - $17.95
$17.95
Auto Ship
Whole House String Wound Sediment Water Filter Cartridge 2.5" x 10" - 50 μm
Hydronix

Whole House String Wound Sediment Water Filter Cartridge 2.5" x 10" - 50 μm

SWC-25-1050
in stock
$7.00 - $7.00
$7.00
$7.00 - $7.00
$7.00

The Hydronix SWC-25-1050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...

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$7.00 - $7.00
$7.00
$7.00 - $7.00
$7.00
Auto Ship
Whole House String Wound Sediment Water Filter Cartridge 2.5" x 10" - 20 μm
Hydronix

Whole House String Wound Sediment Water Filter Cartridge 2.5" x 10" - 20 μm

SWC-25-1020
in stock
$7.00 - $7.00
$7.00
$7.00 - $7.00
$7.00

Hydronix SWC-25-1020 polypropylene String wound filters have a particle retention Size of 20 micron and are used in a residential and commercial wa...

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$7.00 - $7.00
$7.00
$7.00 - $7.00
$7.00
Auto Ship
Pleated Sediment Water Filter Home or Commercial, Reusable 4.5" x 20" - 30 μm
Hydronix

Pleated Sediment Water Filter Home or Commercial, Reusable 4.5" x 20" - 30 μm

SPC-45-2030
in stock
$23.75 - $23.75
$23.75
$23.75 - $23.75
$23.75

The Hydronix SPC-45-2030 4.5" x 20" 30 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior p...

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$23.75 - $23.75
$23.75
$23.75 - $23.75
$23.75
Auto Ship
Polyester Pleated Sediment Water Filter, Washable & Reusable, 2.5" X 20", 20 μm
Hydronix

Polyester Pleated Sediment Water Filter, Washable & Reusable, 2.5" X 20", 20 μm

SPC-25-2020
in stock
$11.52 - $11.52
$11.52
$11.52 - $11.52
$11.52

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

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$11.52 - $11.52
$11.52
$11.52 - $11.52
$11.52
Auto Ship
Whole House RO Reverse Osmosis Sediment Water Filter Cartridge 2.5" x 10", 50 μm
Whole House RO Reverse Osmosis Sediment Water Filter Cartridge 2.5" x 10", 50 μm - IFilters
Hydronix

Whole House RO Reverse Osmosis Sediment Water Filter Cartridge 2.5" x 10", 50 μm

SDC-25-1050
in stock
$8.88 - $8.88
$8.88
$8.88 - $8.88
$8.88

The Hydronix SDC-25-1050 polypropylene sediment filter is a 50 micron rated filter. Its universal standard size fits any standard Reverse Osmosis, ...

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$8.88 - $8.88
$8.88
$8.88 - $8.88
$8.88
Auto Ship
Hydronix SDC-25-0501 Sediment Water Filter Cartridge 2.5" x 5" 1 Micron
Hydronix SDC-25-0501 Sediment Water Filter Cartridge 2.5" x 5" 1 Micron
Hydronix

Hydronix SDC-25-0501 Sediment Water Filter Cartridge 2.5" x 5" 1 Micron

SDC-25-0501
in stock
$7.99 - $7.99
$7.99
$7.99 - $7.99
$7.99

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

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$7.99 - $7.99
$7.99
$7.99 - $7.99
$7.99
Auto Ship
(2 Pack) Hydro Guard HDG-P117/2 Universal GAC Water Filter Cartridge Compatible with AP117
Hydro Guard

(2 Pack) Hydro Guard HDG-P117/2 Universal GAC Water Filter Cartridge Compatible with AP117

HDG-P117/2
in stock
$20.83 - $20.83
$20.83
$20.83 - $20.83
$20.83

Hydro Guard HDG-P117/2 Universal GAC Water Filter Cartridge – AP117 Compatible (2-Pack) Upgrade your water filtration system with the Hydro Guard H...

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$20.83 - $20.83
$20.83
$20.83 - $20.83
$20.83
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