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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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HDF-PE0404 1/4" Stem x 1/4" Tube Plug In Elbow - IFilters
Hydrofit

HDF-PE0404 1/4" Stem x 1/4" Tube Plug In Elbow

HDF-PE0404
in stock
$1.54 - $1.54
$1.54
$1.54 - $1.54
$1.54

The Hydrofit HDF-PE0404 1/4" Stem x 1/4" Tube Plug In Elbow are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide a...

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$1.54 - $1.54
$1.54
$1.54 - $1.54
$1.54
Polaris Scientific GL10SE4P UV Ultraviolet Replacement Lamp, Germicidal Lamp, 10W 4 Pin - IFilters
Polaris Scientific GL10SE4P – 10W UV Ultraviolet Germicidal Replacement Lamp (4-Pin) for UV-1C System
Polaris Scientific

Polaris Scientific GL10SE4P UV Ultraviolet Replacement Lamp, Germicidal Lamp, 10W 4 Pin

GL10SE4P
in stock

$17.48 - $17.48
$17.48
$17.48 - $17.48
$17.48

Polaris Scientific GL10SE4P – 10W UV Ultraviolet Germicidal Replacement Lamp (4-Pin) for UV-1C System The Polaris Scientific GL10SE4P is a high-qua...

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$17.48 - $17.48
$17.48
$17.48 - $17.48
$17.48
Hydronix MRH-720-2 SS304 Stainless Steel Multi-Round Filter Housing
HydroScientific

MRH-720-2 SS304 Filter Housing Stainless Steel Filter Housing

MRH-720-2
in stock

$1,959.02 - $1,959.02
$1,959.02
$1,959.02 - $1,959.02
$1,959.02

HydroScientific MRH-720-2 SS304 Stainless Steel Multi-Round Filter Housing Heavy-Duty 7-Round 20" Filter Housing | 150 PSI | 2" FNPT Ports | 84 GPM...

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$1,959.02 - $1,959.02
$1,959.02
$1,959.02 - $1,959.02
$1,959.02
Harmony Series | 32,000 (32k) Grains Water Softener | 1-2 Bathrooms | Up to 3 People - IFilters
Harmony Series | 32,000 (32k) Grains Water Softener | 1-2 Bathrooms | Up to 3 People - IFilters
Aquasure

Harmony Series | 32,000 (32k) Grains Water Softener | 1-2 Bathrooms | Up to 3 People

AS-HS32D
in stock
$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99

$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99
Polaris Scientific UV Ultraviolet Replacement Lamp, 24W For UVA-6C UV Systems - IFilters
Polaris Scientific UV Ultraviolet Replacement Lamp, 24W For UVA-6C UV Systems - IFilters
Polaris Scientific

Polaris Scientific UV Ultraviolet Replacement Lamp, 24W For UVA-6C UV Systems

GL24PP
in stock
$26.90 - $26.90
$26.90
$26.90 - $26.90
$26.90

Polaris Scientific GL24PP Replacement Germicidal Lamp for the UVA-6C Ultraviolet UV System.

$26.90 - $26.90
$26.90
$26.90 - $26.90
$26.90
Auto Ship
DI, Reverse Osmosis, Whole House Sediment Water Filter 2.5" X 10", 1 μm 20 Pack
DI, Reverse Osmosis, Whole House Sediment Water Filter 2.5" X 10", 1 μm 20 Pack
Hydronix

DI, Reverse Osmosis, Whole House Sediment Water Filter 2.5" X 10", 1 μm 20 Pack

SDC-25-1001/20
in stock
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

The Hydronix SDC-25-1001 polypropylene sediment filter is a 1 Micron rated filter. Its universal standard size fits any standard Reverse Osmosis, W...

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$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
RO-132 4.5 gal (3.2 usable) Reverse Osmosis Storage Water Tank - Blue, 1/4" Port
Hydronix

RO-132 4.5 gal (3.2 usable) Reverse Osmosis Storage Water Tank - Blue, 1/4" Port

RO-132-B14
in stock
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

NSF Certified 4.5 Gallon (3.2 Draw-down) Reverse Osmosis Water Storage Tank. Lead, brass and copper are banned for use in purified/drinking water. ...

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$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
Reverse Osmosis Membrane Housing For Standard 12" membranes, 1/8" NPT Ports - IFilters
Hydronix

Reverse Osmosis Membrane Housing For Standard 12" membranes, 1/8" NPT Ports

MH03-1812WH
in stock

$13.77 - $13.77
$13.77
$13.77 - $13.77
$13.77

The Hydronix MH03-1812WH Membrane Housings are manufactured with high-quality NSF approved material and will accommodate standard membrane elements...

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$13.77 - $13.77
$13.77
$13.77 - $13.77
$13.77
Filter Housing White 10" RO, Whole House, Hydroponics, 3/8" Ports, Double O-Ring
Filter Housing White 10" RO, Whole House, Hydroponics, 3/8" Ports, Double O-Ring
Hydronix

Filter Housing White 10" RO, Whole House, Hydroponics, 3/8" Ports, Double O-Ring

HF4-10WHWH38
in stock
$23.99 - $23.99
$23.99
$23.99 - $23.99
$23.99

The HF4-10WHWH38 is a 10" White Body housing with a White Flat Cap and 3/8" port. This housings has Double O-Rings. Uses any brand of standard 2.5”...

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$23.99 - $23.99
$23.99
$23.99 - $23.99
$23.99
Auto Ship
Well Water Whole House Sediment String Wound Water Filter 4.5" x 10" - 50 micron
Hydronix

Well Water Whole House Sediment String Wound Water Filter 4.5" x 10" - 50 micron

SWC-45-1050
in stock
$18.75 - $18.75
$18.75
$18.75 - $18.75
$18.75

The Hydronix SWC-45-1050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...

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$18.75 - $18.75
$18.75
$18.75 - $18.75
$18.75
Auto Ship
Whole House Sediment Pleated Water Filter, Washable Reusable, 4.5" x 10", 10 μm
Hydronix

Whole House Sediment Pleated Water Filter, Washable Reusable, 4.5" x 10", 10 μm

SPC-45-1010
in stock
$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99

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

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$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99
Auto Ship
Whole House Hydroponics Commercial Sediment Water Filter 10" 20 μm
Hydronix

Whole House Hydroponics Commercial Sediment Water Filter 10" 20 μm

SDC-45-1020
in stock
$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00

Hydronix SDC-45-1020 polypropylene sediment filters have a particle retention size of 20 micron and is used in a residential and comercial water fi...

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$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00
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...

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$19.20 - $19.20
$19.20
$19.20 - $19.20
$19.20
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
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