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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

Hydro Guard HDG-SED-AC5 Compatible with AC30 AC15 Systems Sediment Water Filter - IFilters
Hydro Guard HDG-SED-AC5 5-Micron Sediment Filter – Compatible with Culligan AC15 & AC30 Systems
Hydro Guard

Hydro Guard HDG-SED-AC5 Compatible with AC30 AC15 Systems Sediment Water Filter

HDG-SED-AC5
in stock
$6.00 - $6.00
$6.00
$6.00 - $6.00
$6.00

Hydro Guard HDG-SED-AC5 5-Micron Sediment Filter – Compatible with Culligan AC15 & AC30 Systems The Hydro Guard HDG-SED-AC5 Sediment Filter Car...

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$6.00 - $6.00
$6.00
$6.00 - $6.00
$6.00
Hydro Guard HDG-P117 Universal GAC Water Filter Cartridge Interchangeable with AP117
Hydro Guard

Hydro Guard HDG-P117 Universal GAC Water Filter Cartridge Interchangeable with AP117

HDG-P117
in stock
$12.08 - $12.08
$12.08
$12.08 - $12.08
$12.08

Hydro Guard HDG-P117 Universal GAC Water Filter Cartridge – Compatible with AP117 The Hydro Guard HDG-P117 Granular Activated Carbon (GAC) Water Fi...

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$12.08 - $12.08
$12.08
$12.08 - $12.08
$12.08
Hydro Guard HDGT-HEAD Twist RO System Top Module Head – Compatible with HDGT-45BN & HDGT-45CP - IFilters
Hydro Guard

Hydro Guard HDGT-HEAD Twist RO System Top Module Head – Compatible with HDGT-45BN & HDGT-45CP

HDGT-HEAD
in stock
$78.99 - $78.99
$78.99
$78.99 - $78.99
$78.99

Hydro Guard Twist RO System Top Module Head – Compatible with HDGT-45BN & HDGT-45CP The Hydro Guard Twist RO System Top Module Head is designed...

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$78.99 - $78.99
$78.99
$78.99 - $78.99
$78.99
Hydrofit NSF 3/8 Tube x 3/8 MPT Male Connector Adapter - IFilters
Hydrofit

Hydrofit NSF 3/8 Tube x 3/8 MPT Male Connector Adapter

HDF-MC0606
in stock
$1.60 - $1.60
$1.60
$1.60 - $1.60
$1.60

The Hydrofit NSF 3/8" Tube x 3/8" NPT Male Connector Adapter is NSF-approved and are designed for ease of use. Hydrofit Quick Connect Fittings are ...

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$1.60 - $1.60
$1.60
$1.60 - $1.60
$1.60
Hydronix PFM-NUT-12 PFM Replacement Nut, 1/2" MNPT - IFilters
Hydronix PFM-NUT-12 PFM Replacement Nut, 1/2" MNPT - IFilters
Hydronix

Hydronix PFM-NUT-12 PFM Replacement Nut, 1/2" MNPT

PFM-NUT-12
in stock
$4.99 - $4.99
$4.99
$4.99 - $4.99
$4.99

$4.99 - $4.99
$4.99
$4.99 - $4.99
$4.99
Hydronix Modern Ceramic Reverse Osmosis Filtered Water Faucet, Chrome - IFilters
Hydronix

Reverse Osmosis Air-Gap Faucet Quality Luxury Design, Ceramic Lead Free Parts, Chrome

LF-EC32-CPAG
in stock

$36.99 - $36.99
$36.99
$36.99 - $36.99
$36.99

Hydronix LF-EC32-CPAG ceramic Air-Gap faucet is a chrome plated faucet that can be used in reverse Osmosis and Drinking water systems. The LF-EC32-...

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$36.99 - $36.99
$36.99
$36.99 - $36.99
$36.99
Water Filter Housing, House Commercial Hydroponics Clear BB Size 20", 3/4" Ports
Hydronix

Water Filter Housing, House Commercial Hydroponics Clear BB Size 20", 3/4" Ports

HF45-20CLBK34
in stock
$98.95 - $98.95
$98.95
$98.95 - $98.95
$98.95

The Hydronix HF45-20CLBK34 (Note: Picture shows PR version, this one does not include the PR button) 20" Clear Filter Housing is an extra-wide hous...

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$98.95 - $98.95
$98.95
$98.95 - $98.95
$98.95
Pressure Regulator Protection Valve for RO & Filter Systems, 1/4" QC, 40 PSI
Shok Blok

Pressure Regulator Protection Valve for RO & Filter Systems, 1/4" QC, 125 PSI

SB-FPV-125
in stock
$12.30 - $12.30
$12.30
$12.30 - $12.30
$12.30

Shokblok Filter protection valves are designed for high pressure installations to protect reverse Osmosis systems, water filtration systems, ice ma...

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$12.30 - $12.30
$12.30
$12.30 - $12.30
$12.30
Hydronix 5" White Housing w/ White Rib Cap, RO & Filtration Systems, 1/2" Ports
Hydronix

Hydronix 5" White Housing w/ White Rib Cap, RO & Filtration Systems, 1/2" Ports

HF3-5WHWH12
in stock
$16.34 - $16.34
$16.34
$16.34 - $16.34
$16.34

Hydronix HF3 series Slim Rib cap Filter housings have pressure Relief (PR) buttons and are ideal for Typical applications such as pre- and post-fil...

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$16.34 - $16.34
$16.34
$16.34 - $16.34
$16.34
Hydronix 10" White Housing, White Rib Cap, RO & Filtration 3/4" Ports w/ Relief
Hydronix

Hydronix 10" White Housing, White Rib Cap, RO & Filtration 3/4" Ports w/ Relief

HF3-10WHWH34PR
in stock
$24.50 - $24.50
$24.50
$24.50 - $24.50
$24.50

Hydronix HF3 series Slim Rib cap Filter housings have pressure Relief (PR) buttons and are ideal for Typical applications such as pre- and post-fil...

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$24.50 - $24.50
$24.50
$24.50 - $24.50
$24.50
Hydronix 10" White Housing w/ White Flat Cap, RO & Filtration Systems 1/2" Ports
Hydronix

Hydronix 10" White Housing w/ White Flat Cap, RO & Filtration Systems 1/2" Ports

HF2-10WHWH12
in stock
$17.74 - $17.74
$17.74
$17.74 - $17.74
$17.74

Hydronix HF2 series Slim flat cap Filter housings are ideal for Typical applications as pre- and post-filtration for RO systems, under sink filters...

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$17.74 - $17.74
$17.74
$17.74 - $17.74
$17.74
Hydronix 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports
Hydronix 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports
Hydronix

Hydronix 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports

HF2-10CLWH14
in stock
$18.24 - $18.24
$18.24
$18.24 - $18.24
$18.24

Hydronix HF2 series Slim flat cap Filter housings are ideal for Typical applications as pre- and post-filtration for RO systems, under sink filters...

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$18.24 - $18.24
$18.24
$18.24 - $18.24
$18.24
Hydro Guard HDG-CB-AC10 Carbon Block Pre-Filter for AC30 AC15 Systems - 2 Pack
Hydro Guard

Hydro Guard HDG-CB-AC10 Carbon Block Pre-Filter for AC30 AC15 Systems - 2 Pack

HDG-CB-AC10/2
in stock

$20.84 - $20.84
$20.84
$20.84 - $20.84
$20.84

Hydro Guard HDG-CB-AC10 Carbon Block Pre-Filter – 2-Pack for AC30 & AC15 Systems Upgrade your water filtration system with the Hydro Guard HDG-...

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$20.84 - $20.84
$20.84
$20.84 - $20.84
$20.84
Hydronix SPV-4021-12 Stainless Steel Membrane Housing – 4" x 21", 1/2" Ports
Hydronix

Hydronix SPV-2521 2.5"x21" Stainless Steel Membrane Housing 300 PSI, 3/8" Ports

SPV-2521
in stock
$155.00 - $155.00
$155.00
$155.00 - $155.00
$155.00

Hydronix SPV-2521 Stainless Steel Membrane Housing – 2.5" x 21", 300 PSI, 3/8" Ports The Hydronix SPV-2521 Stainless Steel Membrane Housing is a hi...

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$155.00 - $155.00
$155.00
$155.00 - $155.00
$155.00
Hydronix MRH-BC-BOLT Bolt and Nut for MRH Band Clamp Series Housings - IFilters
Hydronix MRH-BC-BOLT Bolt and Nut for MRH Band Clamp Series Housings - IFilters
Hydronix

Hydronix MRH-BC-BOLT Bolt and Nut for MRH Band Clamp Series Housings

MRH-BC-BOLT
in stock
$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

Hydronix MRH-BC-BOLT – Replacement Bolt & Nut for MRH Band Clamp Series Housings The Hydronix MRH-BC-BOLT is a replacement bolt and nut designe...

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$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00
PRO+AQUA

PRO+AQUA PRO-SCI Whole House Single Stage Carbon Infused Water Filter System

PRO-SCI
in stock

$250.95 - $250.95
$250.95
$250.95 - $250.95
$250.95

Elevate your home's water quality with the PRO+AQUA PRO-SCI Single Stage Carbon Infused Whole House Filtration System. Safeguard your family from t...

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$250.95 - $250.95
$250.95
$250.95 - $250.95
$250.95
HDF-FE0608 - IFilters
Hydrofit

HDF-FE0608

HDF-FE0608
in stock
$1.99 - $1.99
$1.99
$1.99 - $1.99
$1.99

The Hydrofit 3/8" Tube x 1/2" NPTF Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the typic...

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$1.99 - $1.99
$1.99
$1.99 - $1.99
$1.99
Hydronix RO-44-W114 - 44 Gallon Reverse Osmosis Water Storage Tank (White, 1.25" Port)
Hydronix

Hydronix RO-44-W114 44 Gallon Revers Osmosis Water Storage Tank - White, 1.25" Port

RO-44-W114
in stock
$690.00 - $690.00
$690.00
$690.00 - $690.00
$690.00

Hydronix RO-44-W114 - 44 Gallon Reverse Osmosis Water Storage Tank (White, 1.25" Port) NSF Certified High-Capacity RO Storage Tank The Hydronix RO-...

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$690.00 - $690.00
$690.00
$690.00 - $690.00
$690.00
Polaris Scientific GLHO58PP – High Output 58W Ultraviolet Germicidal Lamp for UVA-630HO UV System
Polaris Scientific

Polaris Scientific GLHO58PP Ultraviolet Lamp High Output 58W for UVA-630HO UV System

GLHO58PP
in stock
$112.89 - $112.89
$112.89
$112.89 - $112.89
$112.89

Polaris Scientific GLHO58PP – High Output 58W Ultraviolet Germicidal Lamp for UVA-630HO UV System The Polaris Scientific GLHO58PP is an OEM replace...

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$112.89 - $112.89
$112.89
$112.89 - $112.89
$112.89
Black Rib Cap with 1/4" ports for HF3 Housings - IFilters
Hydronix

Black Rib Cap with 1/4" ports for HF3 Housings

HF3-CAP14BK
in stock

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

Hydronix Rib Cap for HF3 Housings with 1/4" female NPT ports.

$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/ PR
Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/ PR
Hydronix

Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/ PR

HF45-20BLBK34PR
in stock
$52.49 - $52.49
$52.49
$52.49 - $52.49
$52.49

The Hydronix HF45-20BLBK34PR 20" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing...

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$52.49 - $52.49
$52.49
$52.49 - $52.49
$52.49
Hydronix HF45-10BLBK34PR Water Filter Housing NSF listed 10" - 3/4" Ports w/ PR
Hydronix HF45-10BLBK34PR Water Filter Housing NSF listed 10" - 3/4" Ports w/ PR
Hydronix

Hydronix HF45-10BLBK34PR Water Filter Housing NSF listed 10" - 3/4" Ports w/ PR

HF45-10BLBK34PR
in stock
$40.19 - $40.19
$40.19
$40.19 - $40.19
$40.19

The Hydronix HF45-10BLBK34PR 10" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing...

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$40.19 - $40.19
$40.19
$40.19 - $40.19
$40.19
Hydronix HF45-10BLBK34 Water Filter Housing NSF listed 10" - 3/4" Ports
Hydronix HF45-10BLBK34 Water Filter Housing NSF listed 10" - 3/4" Ports
Hydronix

Hydronix HF45-10BLBK34 Water Filter Housing NSF listed 10" - 3/4" Ports

HF45-10BLBK34
in stock
$39.67 - $39.67
$39.67
$39.67 - $39.67
$39.67

The Hydronix HF45-10BLBK34 10" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. It is made of ...

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$39.67 - $39.67
$39.67
$39.67 - $39.67
$39.67
Hydronix 10" Clear Housing w/ White Rib Cap, RO & Filtration Systems, 3/4" Ports
Hydronix

Hydronix 10" Clear Housing w/ White Rib Cap, RO & Filtration Systems, 3/4" Ports

HF3-10CLWH34
in stock
$23.50 - $23.50
$23.50
$23.50 - $23.50
$23.50

Hydronix HF3 series Slim Rib cap Filter housings have pressure Relief (PR) buttons and are ideal for Typical applications such as pre- and post-fil...

View full details
$23.50 - $23.50
$23.50
$23.50 - $23.50
$23.50
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