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!

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Hydronix

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

HF3-5CLWH12

in stock

$17.84 - $17.84

$17.84

$17.84 - $17.84

$17.84

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

$17.84 - $17.84

$17.84

$17.84 - $17.84

$17.84

Hydronix

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

HF3-10WHWH14

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

Hydronix

Hydronix 10" White Housing, White Rib Cap, RO & Filtration 1/2" Ports w/ Relief

HF3-10WHWH12PR

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...

View full details

$24.50 - $24.50

$24.50

$24.50 - $24.50

$24.50

Hydronix

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

HF3-10WHWH12

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

Hydronix

Hydronix 10" Clear Housing w/ White Rib Cap, RO & Filtration Systems, 3/8" Ports

HF3-10CLWH38

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

Hydronix

Hydronix 10" Clear Housing, White Rib Cap, RO & Filtration 1/2" Ports w/ Relief

HF3-10CLWH12PR

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...

View full details

$24.50 - $24.50

$24.50

$24.50 - $24.50

$24.50

Hydronix

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

HF3-10CLWH12

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

Hydronix

Hydronix 10" Clear Housing w/ Black Rib Cap, RO & Filtration Systems, 3/8" Ports

HF3-10CLBK38

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

Hydronix

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

HF3-10CLBK14

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

Hydronix

Hydronix 10" Clear Housing, Black Rib Cap, RO & Filtration, 1/2" Ports w/ Relief

HF3-10CLBK12PR

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...

View full details

$24.50 - $24.50

$24.50

$24.50 - $24.50

$24.50

Hydronix

Hydronix 10" Clear Housing w/ Black Rib Cap, RO & Filtration Systems, 1/2" Ports

HF3-10CLBK12

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

Hydronix

Hydronix 5" White Housing w/ White Flat Cap, RO & Filtration Systems, 3/8" Ports

HF2-5WHWH38

in stock

$15.83 - $15.83

$15.83

$15.83 - $15.83

$15.83

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

View full details

$15.83 - $15.83

$15.83

$15.83 - $15.83

$15.83

Hydronix

Hydronix 5" Clear Housing w/ White Flat Cap, RO & Filtration Systems 3/8" Ports

HF2-5CLWH38

in stock

$18.50 - $18.50

$18.50

$18.50 - $18.50

$18.50

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

View full details

$18.50 - $18.50

$18.50

$18.50 - $18.50

$18.50

Hydronix

Hydronix RO Filtration Systems 10" Clear Housing w/ Black Flat Cap 1/4" Ports

HF2-10CLBK14

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...

View full details

$18.24 - $18.24

$18.24

$18.24 - $18.24

$18.24

Hydronix

Hydronix RO Filtration Systems 10" Clear Housing w/ Black Flat Cap 1/2" Ports

HF2-10CLBK12

in stock

$18.75 - $18.75

$18.75

$18.75 - $18.75

$18.75

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

View full details

$18.75 - $18.75

$18.75

$18.75 - $18.75

$18.75

Hydronix

Hydronix RO & Filtration Systems 10" Blue Housing w/ Black Flat Cap 1/4" Ports

HF2-10BLBK14

in stock

$17.23 - $17.23

$17.23

$17.23 - $17.23

$17.23

Hydronix HF2 Series Slim Flat Cap Filter Housings are ideal for typical applications as pre- and post-filtration for RO systems, under sink filters...

View full details

$17.23 - $17.23

$17.23

$17.23 - $17.23

$17.23

HydroScientific

HS-ORING-E-EP – HydroScientific Stainless Steel Housing O-Ring, EPDM Material, Compatible with BF1/BF2/HSBJ40-90-170/MRH-5(10-40)/MRH-7(10-40)

HS-ORING-E-EP

in stock

$30.42 - $30.42

$30.42

$30.42 - $30.42

$30.42

The HS-ORING-E-EP is a high-performance EPDM O-ring designed for HydroScientific stainless steel housing applications. Engineered for durability an...

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$30.42 - $30.42

$30.42

$30.42 - $30.42

$30.42

Hydrofit

HYDROFIT 1/4" x 1/4" x 1/4" Tube Stem Branch Tee HDF-SBT0404

HDF-SBT0404

in stock

$1.30 - $1.30

$1.30

$1.30 - $1.30

$1.30

$1.30 - $1.30

$1.30

$1.30 - $1.30

$1.30

Hydrofit

HYDROFIT 1/4" x 1/4" x 1/4" Two-Way Tube Splitter - HDF-TW04

HDF-TW04

Out of stock

$1.60 - $1.60

$1.60

$1.60 - $1.60

$1.60

HYDROFIT 1/4" Tube x 1/4" Tube x 1/4" Tube Two-Way Splitter (HDF-TW04)Efficient Tube-to-Tube Water Line Splitter The HYDROFIT HDF-TW04 is a 1/4" t...

View full details

$1.60 - $1.60

$1.60

$1.60 - $1.60

$1.60

Hydrofit

HYDROFIT 1/4" Tube to 3/4" Female NPT Hose Connector – HDF-BF0412 Adapter Fitting for Hydraulic & Plumbing Systems

HDF-BF0412

in stock

$9.71 - $9.71

$9.71

$9.71 - $9.71

$9.71

HYDROFIT 1/4" Tube x 3/4" Female NPT Hose Connector – HDF-BF0412 This high-quality adapter connects a 1/4" tube to a 3/4" female NPT (National Pipe...

View full details

$9.71 - $9.71

$9.71

$9.71 - $9.71

$9.71

Hydronix

HYDRONIX 4" x 61" Stainless Steel RO Membrane Housing (SPV-4061) – 300 PSI, 3/4" Feed, 1/2" Permeate SPV-4061

SPV-4061

in stock

$322.99

$322.99 - $322.99

$322.99

$211.35

$211.35 - $211.35

$211.35

The HYDRONIX SPV-4061 is a high-performance 4-inch x 61-inch stainless steel pressure vessel designed for reverse osmosis (RO) systems. Built to wi...

View full details

$322.99

$322.99 - $322.99

$322.99

$211.35

$211.35 - $211.35

$211.35

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