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

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$23.50 - $23.50
$23.50
$23.50 - $23.50
$23.50
Hydronix 10" Clear Housing, Black Rib Cap, RO & Filtration, 1/2" Ports w/ Relief
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...

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$24.50 - $24.50
$24.50
$24.50 - $24.50
$24.50
Hydronix 10" Clear Housing w/ Black Rib Cap, RO & Filtration Systems, 1/2" Ports
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...

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$23.50 - $23.50
$23.50
$23.50 - $23.50
$23.50
Hydronix 5" White Housing w/ White Flat Cap, RO & Filtration Systems, 3/8" Ports
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...

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$15.83 - $15.83
$15.83
$15.83 - $15.83
$15.83
Hydronix 5" Clear Housing w/ White Flat Cap, RO & Filtration Systems 3/8" Ports
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...

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$18.50 - $18.50
$18.50
$18.50 - $18.50
$18.50
Hydronix RO Filtration Systems 10" Clear Housing w/ Black Flat Cap 1/4" Ports
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...

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$18.24 - $18.24
$18.24
$18.24 - $18.24
$18.24
Hydronix RO Filtration Systems 10" Clear Housing w/ Black Flat Cap 1/2" Ports
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 RO & Filtration Systems 10" Blue Housing w/ Black Flat Cap 1/4" Ports
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...

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$17.23 - $17.23
$17.23
$17.23 - $17.23
$17.23
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) - IFilters
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
Hydronix

EC2010-C - HYDRONIX INLINE EMPTY CARTRIDGE, 2" OD X 10"L, 1/4"FNPT CLEAR

EC2010-C
in stock
$6.41 - $6.41
$6.41
$6.41 - $6.41
$6.41

HYDRONIX INLINE EMPTY CARTRIDGE, 2" OD X 10"L, 1/4"FNPT CLEAR

$6.41 - $6.41
$6.41
$6.41 - $6.41
$6.41
Auto Ship
EC-2505W Hydronix Empty Cartridge, 2.5" OD X 5" L WHITE - IFilters
Hydronix

EC-2505W Hydronix Empty Cartridge, 2.5" OD X 5" L WHITE

EC-2505W
in stock
$6.66 - $6.66
$6.66
$6.66 - $6.66
$6.66

This Hydronix Empty Cartridge is designed for compatibility with various filtration systems, providing a reliable and reusable solution for your fi...

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$6.66 - $6.66
$6.66
$6.66 - $6.66
$6.66
Aquasure Premier Elite Series 4-Stage Reverse Osmosis System + Electric Booster Pump & LED Faucet – 100 GPD Premium Performance - IFilters
Aquasure Premier Elite Series 4-Stage Reverse Osmosis System + Electric Booster Pump & LED Faucet – 100 GPD Premium Performance - IFilters
Aquasure

Aquasure Premier Elite Series 4-Stage Reverse Osmosis System + Electric Booster Pump & LED Faucet – 100 GPD Premium Performance

AS-PR100E
in stock
$339.99 - $339.99
$339.99
$339.99 - $339.99
$339.99

OverviewThe Aquasure Premier Elite 100 GPD Reverse Osmosis Drinking Water System with Pressure Pump is engineered to deliver ultra-pure, great-tas...

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$339.99 - $339.99
$339.99
$339.99 - $339.99
$339.99
Aquasure Premier Pro Series 4-Stage Reverse Osmosis System + LED Faucet – 100 GPD High Capacity Water Filtration - IFilters
Aquasure Premier Pro Series 4-Stage Reverse Osmosis System + LED Faucet – 100 GPD High Capacity Water Filtration - IFilters
Aquasure

Aquasure Premier Pro Series 4-Stage Reverse Osmosis System + LED Faucet – 100 GPD High Capacity Water Filtration

AS-PR100P
in stock
$239.99 - $239.99
$239.99
$239.99 - $239.99
$239.99

OverviewThe Aquasure Premier Pro Series Advanced 100 GPD Reverse Osmosis Drinking Water System delivers high-volume, purified water straight from y...

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$239.99 - $239.99
$239.99
$239.99 - $239.99
$239.99
Aquasure Premier Advanced Series 4-Stage Reverse Osmosis System + Alkaline Remineralizing Filter – 75 GPD Clean Drinking Water - IFilters
Aquasure Premier Advanced Series 4-Stage Reverse Osmosis System + Alkaline Remineralizing Filter – 75 GPD Clean Drinking Water - IFilters
Aquasure

Aquasure Premier Advanced Series 4-Stage Reverse Osmosis System + Alkaline Remineralizing Filter – 75 GPD Clean Drinking Water

AS-PR75AK
in stock
$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99

OverviewThe Aquasure Premier Series Advanced 75 GPD Reverse Osmosis Drinking Water System with Alkaline Remineralizing Filter enhances your water w...

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$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99
Aquasure Premier Advanced Series 4-Stage 75 GPD Reverse Osmosis Water Filtration System Chrome Faucet Clean Drinking Water Solution - IFilters
Aquasure Premier Advanced Series 4-Stage 75 GPD Reverse Osmosis Water Filtration System Chrome Faucet Clean Drinking Water Solution - IFilters
Aquasure

Aquasure Premier Advanced Series 4-Stage 75 GPD Reverse Osmosis Water Filtration System Chrome Faucet Clean Drinking Water Solution

AS-PR75A
in stock
$189.99 - $189.99
$189.99
$189.99 - $189.99
$189.99

OverviewThe Aquasure Premier Series Advanced 75 GPD Reverse Osmosis Drinking Water System offers the perfect solution for delivering clean, refres...

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$189.99 - $189.99
$189.99
$189.99 - $189.99
$189.99
Auto Ship
Hydronix 2.5" x 10" CIC Plus Carbon / Sediment Filter 5 Micron - CIC-10PLUS - IFilters
Hydronix

Hydronix 2.5" x 10" CIC Plus Carbon / Sediment Filter 5 Micron - CIC-10PLUS

CIC-10PLUS
in stock
$10.52 - $10.52
$10.52
$10.52 - $10.52
$10.52

Hydronix 2.5 x 10 Inch CIC Plus Carbon Block Water Filter – 5 Micron for Sediment & Chlorine Reduction – CIC-10PLUS Replacement Filter Premium ...

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$10.52 - $10.52
$10.52
$10.52 - $10.52
$10.52
HYDROFIT 1/4" x 1/4" x 1/4" Tube Stem Branch Tee HDF-SBT0404 - IFilters
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 1/4" x 1/4" x 1/4" Two-Way Tube Splitter - HDF-TW04 - IFilters
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...

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$1.60 - $1.60
$1.60
$1.60 - $1.60
$1.60
Auto Ship
Hydron

HYDRON MEMBRANE 300GPD Reverse Osmosis (RO) Water Filter – SKU: TW-3012

TW-3012
in stock
$70.25 - $70.25
$70.25
$70.25 - $70.25
$70.25

Upgrade your water purification system with the HYDRON MEMBRANE 300GPD, a high-performance reverse osmosis (RO) membrane designed for efficient fil...

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$70.25 - $70.25
$70.25
$70.25 - $70.25
$70.25
Auto Ship
HydroScientific HSC-40-0.35-PPA Pleated Sediment Filter – 0.35 Micron Absolute, Jumbo 7-3/4" x 9-5/8" - IFilters
HydroScientific

HydroScientific HSC-40-0.35-PPA Pleated Sediment Filter – 0.35 Micron Absolute, Jumbo 7-3/4" x 9-5/8"

HSC-40-0.35-PPA
in stock
$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99

Hydroscientific Pleated Sediment Water Filter Jumbo 40 – 0.35 Micron Absolute – HSC-40-0.35-PPA Pleated Jumbo High Flow Filter CartridgesHSC SERIE...

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$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99
HYDROFIT 1/4" Tube to 3/4" Female NPT Hose Connector – HDF-BF0412 Adapter Fitting for Hydraulic & Plumbing Systems - IFilters
HYDROFIT 1/4" Tube to 3/4" Female NPT Hose Connector – HDF-BF0412 Adapter Fitting for Hydraulic & Plumbing Systems - IFilters
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...

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$9.71 - $9.71
$9.71
$9.71 - $9.71
$9.71
Auto Ship
Hydronix

HYDRONIX HTC-2520-BX 2.5x20" Sediment & Phosphate Water Filter | Includes Box | Dual-Action

HTC-2520-BX
in stock
$27.66 - $27.66
$27.66
$27.66 - $27.66
$27.66

HYDRONIX SEDIMENT PHOSPHATE FILTERSize: 2.5" x 20"Type: Dual-action filter for sediment and phosphate reductionIncluded: Original packaging box The...

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$27.66 - $27.66
$27.66
$27.66 - $27.66
$27.66
Auto Ship
Hydron

Hydro Guard HDG-45 (Drop In) Reverse Osmosis Membrane

HDG-TW50
in stock
$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00

Genuine OEM Hydro Guard HDG-TW50 Drop In Reverse Osmosis Membrane for 4 Stage HDG-45 Drop-In Style Reverse Osmosis System. Not Compatible with the ...

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$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00
HYDRONIX 4" x 61" Stainless Steel RO Membrane Housing (SPV-4061) – 300 PSI, 3/4" Feed, 1/2" Permeate SPV-4061 - IFilters
HYDRONIX 4" x 61" Stainless Steel RO Membrane Housing (SPV-4061) – 300 PSI, 3/4" Feed, 1/2" Permeate SPV-4061 - IFilters
Sale Sale
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...

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$322.99
$322.99 - $322.99
$322.99
$211.35
$211.35 - $211.35
$211.35
Sale Sale
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