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Water Filtration System Parts

Reliable System parts keep your water filtration setup running at its best. From small seals to advanced electrical components, each part plays a role in maintaining water flow, pressure control, and filtration accuracy. Over time, wear and tear can affect valves, housings, and fittings, which makes timely replacement important. Choosing compatible components helps extend system life and protect your investment.

About Our System Parts

Our collection includes water softener heads, riser tubes, distributor baskets, pressure gauges, and power adapters designed for filtration and treatment systems. You will also find O-rings for various housing models, reverse osmosis booster pumps, storage tanks, and pressure protection valves. Ultraviolet system ballasts and replacement lamps are available to support disinfection performance. For countertop and under-sink systems, faucet adapters, fittings, and stainless steel connectors offer secure installation. Every component is selected to meet standard sizing and performance needs across many filtration brands.

Each product listing highlights availability, reviews, and compatibility details to help you make confident decisions. With hundreds of parts in stock, finding the right replacement becomes straightforward. Whether you are upgrading a softener valve or replacing a worn gasket, quality components restore proper function.

Why Choose iFilters for System Parts?

iFilters offers a wide selection of system parts backed by consistent inventory and dependable shipping. Clear product descriptions and model references make it easier to match parts with your system. Competitive pricing supports both residential users and professional installers. Customer feedback and ratings add helpful insight before purchase.

Shop system parts online today!

Filters

Hydrofit HDF-ECV0402 1/4” Tube x 1/8” MNPT, Elbow Check Valve - IFilters
Hydrofit

Hydrofit HDF-ECV0402 1/4” Tube x 1/8” MNPT, Elbow Check Valve

HDF-ECV0402
Out of stock
$4.22 - $4.22
$4.22
$4.22 - $4.22
$4.22

Hydrofit HDF-ECV0402 1/4” to 1/8” MNPT Elbow Check Valve – NSF 61 Certified, Quick Connect Fitting for Water & Food Applications HYDROFIT™ – ...

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$4.22 - $4.22
$4.22
$4.22 - $4.22
$4.22
Aquatrol AT-0735BL-25T 7 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol AT-0735BL-25T 7 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol

Aquatrol AT-0735BL-25T 7 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

AT-0735BL-25T
in stock
$86.04 - $86.04
$86.04
$86.04 - $86.04
$86.04

Aquatrol AT-0735BL-25T – 7" x 35" Mineral Pressure Tank for Water Softeners & Filtration (2.5" Port) The Aquatrol AT-0735BL-25T Mineral Pressur...

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$86.04 - $86.04
$86.04
$86.04 - $86.04
$86.04
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
Hydronix PFM-535 Panel Mount Flow Meter – 5-35 GPM, 1" MNPT
Hydronix

Hydronix PFM-535 Panel Mount Flow Meter 5 - 35 GPM 1" MNPT

PFM-535
in stock
$75.95 - $75.95
$75.95
$75.95 - $75.95
$75.95

Hydronix PFM-535 Panel Mount Flow Meter – 5-35 GPM, 1" MNPT The Hydronix PFM-535 Panel Mount Flow Meter is designed for high-precision water flow m...

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$75.95 - $75.95
$75.95
$75.95 - $75.95
$75.95
Hydronix PG25300L - 0-300 PSI Water Pressure Gauge, 2.5" Stainless Steel, 1/4" NPT Port
Hydronix

Hydronix PG25300L - 0-300 PSI Water Pressure Gauge 2.5" Stainless Steel 1/4" Port NPT

PG25300L
in stock

$14.25 - $14.25
$14.25
$14.25 - $14.25
$14.25

Hydronix PG25300L - 0-300 PSI Water Pressure Gauge, 2.5" Stainless Steel, 1/4" NPT Port The Hydronix PG25300L is a high-quality, UV-resistant water...

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$14.25 - $14.25
$14.25
$14.25 - $14.25
$14.25
Pro+Aqua 3/4" Garden Hose Shut Off Valve, Heavy Duty Ball Valve Water Hose Fitting - IFilters
PRO+AQUA

Pro+Aqua 3/4" Garden Hose Shut Off Valve, Heavy Duty Ball Valve Water Hose Fitting

GHT-SOV
in stock
$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99

Pro+Aqua 3/4" Garden Hose Shut Off Valve, Heavy Duty Ball Valve Water Hose Fitting, Easy On/Off Ergonomic Design

$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99
Hydronix EC25 Air Gap Ceramic Faucet 3" Shank, Brush Nickel - IFilters
Hydronix Modern Ceramic RO or Filtered Water Faucet, Brushed Nickel - IFilters
Hydronix

Hydronix EC25 Air Gap Ceramic Faucet 3" Shank, Brush Nickel

LF-EC25-BNAG
in stock
$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99

The Hydronix LF-EC25-BNAG is an Elegant Designer Ceramic Faucet with Air Gap. It has a Brush Nickel finish with a 3" Shank. Hydronix LF Series Lead...

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$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99
White Empty Water Filter Cartridge For Pre or Post Use Durable 2.5" x 20" - IFilters
Hydronix

White Empty Water Filter Cartridge For Pre or Post Use Durable 2.5" x 20"

EC-2520W
in stock
$10.01 - $10.01
$10.01
$10.01 - $10.01
$10.01

Hydronix Empty Cartridges can be used with carbon, resin, KDF or any other media. Made from High Impact Polystyrene to withstand continuous usage a...

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$10.01 - $10.01
$10.01
$10.01 - $10.01
$10.01
Reverse Osmosis Membrane Flush Kit Valve For 75 GPD RO Systems, 1/4" QC Ports - IFilters
iFilters

Reverse Osmosis Membrane Flush Kit Valve For 75 GPD RO Systems, 1/4" QC Ports

RO-FLUSH-75
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
Hydronix 5" Clear Housing w/ White Rib Cap, RO & Filtration Systems, 1/2" Ports
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...

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$17.84 - $17.84
$17.84
$17.84 - $17.84
$17.84
Hydronix 5" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports
Hydronix

Hydronix 5" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports

HF2-5CLWH14
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 10" White Housing w/ White Flat Cap, RO & Filtration Systems 3/8" Ports
Hydronix

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

HF2-10WHWH38
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
Hydronix 10" Blue Housing w/ Black Rib Cap, RO & Filtration Systems, 3/8" Ports
Hydronix

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

HF3-10BLBK38
in stock
$17.23 - $17.23
$17.23
$17.23 - $17.23
$17.23

Hydronix HF3 series Slim Rib cap Filter housings are ideal for typical applications such as pre- and post-filtration for ro systems, under sink fil...

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$17.23 - $17.23
$17.23
$17.23 - $17.23
$17.23
Hydronix 10" Blue Housing w/ Black Rib Cap, RO & Filtration Systems, 1/4" Ports
Hydronix

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

HF3-10BLBK14
in stock
$17.23 - $17.23
$17.23
$17.23 - $17.23
$17.23

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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$17.23 - $17.23
$17.23
$17.23 - $17.23
$17.23
Hydrofit, 3/8" Stem x 1/4" Tube Adapter - Stem Connector - HDF-SC0604 - IFilters
Hydrofit

Hydrofit, 3/8" Stem x 1/4" Tube Adapter - Stem Connector - HDF-SC0604

HDF-SC0604
in stock
$1.10 - $1.10
$1.10
$1.10 - $1.10
$1.10

Hydrofit, 3/8" Stem x 1/4" Tube Adapter Hydrofit, 3/8" Stem x 1/4" Tube Adapter

$1.10 - $1.10
$1.10
$1.10 - $1.10
$1.10
Aquatrol AT-1035BK-25T 10 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol AT-1035BK-25T 10 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-1035BK-25T 10 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

AT-1035BK-25T
in stock
$101.99 - $101.99
$101.99
$101.99 - $101.99
$101.99

Aquatrol AT-1035BK-25T 10 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

$101.99 - $101.99
$101.99
$101.99 - $101.99
$101.99
Aquatrol AT-1017BL-25T 10 x 17 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol AT-1017BL-25T 10 x 17 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol

Aquatrol AT-1017BL-25T 10 x 17 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

AT-1017BL-25T
in stock
$86.76 - $86.76
$86.76
$86.76 - $86.76
$86.76

Aquatrol AT-1017BL-25T 10 x 17 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

$86.76 - $86.76
$86.76
$86.76 - $86.76
$86.76
Aquatrol AT-0948BL-25T 9 x 48 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol AT-0948BL-25T 9 x 48 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol

Aquatrol AT-0948BL-25T 9 x 48 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

AT-0948BL-25T
in stock
$94.99 - $94.99
$94.99
$94.99 - $94.99
$94.99

Aquatrol AT-0948BL-25T 9 x 48 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

$94.99 - $94.99
$94.99
$94.99 - $94.99
$94.99
Aquatrol AT-0618BL-25T 6 x 18 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol AT-0618BL-25T 6 x 18 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol

Aquatrol AT-0618BL-25T 6 x 18 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

AT-0618BL-25T
in stock
$66.47 - $66.47
$66.47
$66.47 - $66.47
$66.47

Aquatrol AT-0618BL-25T 6 x 18 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

$66.47 - $66.47
$66.47
$66.47 - $66.47
$66.47
70-8-P-PG Polypropylene Union Tee Fitting 1/2 OD Tube x 1/2 OD Tube x 1/2 OD Tube - IFilters
Hydronix

70-8-P-PG Polypropylene Union Tee Fitting 1/2 OD Tube x 1/2 OD Tube x 1/2 OD Tube

HDX708
in stock
$5.24 - $5.24
$5.24
$5.24 - $5.24
$5.24

JACO polypropylene fittings are known for their excellent chemical resistance, making them suitable for use with most weak acids and alkalis. They ...

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$5.24 - $5.24
$5.24
$5.24 - $5.24
$5.24
Band Clamp for MRH4 Band Clamp Series Housings - IFilters
Band Clamp for MRH4 Band Clamp Series Housings - IFilters
HydroScientific

Band Clamp for MRH4 Band Clamp Series Housings

MRH4-BANDCLAMP
in stock
$147.78 - $147.78
$147.78
$147.78 - $147.78
$147.78

Replacement band clamp for the HydroScientific MRH4 Stainless Steel Housings, Band Clamp Series.

$147.78 - $147.78
$147.78
$147.78 - $147.78
$147.78
Aquatrol AQT-HL-7162 Bottom HUB Distributor – 2" Port, 6 Laterals for 30" Tanks
Aquatrol

Aquatrol AQT-HL-7162 Bottom HUB Distributor | 2" Port & 6 Laterals | Fits 30" Tanks

AQT-HL-7162
in stock
$180.41 - $180.41
$180.41
$180.41 - $180.41
$180.41

Aquatrol AQT-HL-7162 Bottom HUB Distributor – 2" Port, 6 Laterals for 30" Tanks The Aquatrol AQT-HL-7162 Bottom Mount Hub & Lateral Distributor...

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$180.41 - $180.41
$180.41
$180.41 - $180.41
$180.41
Aquatrol AQT-MSV-1 Manual Water Softener Valve – 1" Ports, 2.5" Base
Aquatrol

Aquatrol AQT-MSV-1 Manual Water Softener Valve | 1" Ports & 2.5" Base | Easy Lever Control

AQT-MSV-1
in stock
$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99

Aquatrol AQT-MSV-1 Manual Water Softener Valve – 1" Ports, 2.5" Base The Aquatrol AQT-MSV-1 Manual Water Softener Valve is a high-quality, manually...

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$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99
Brine Valve Assembly with 3/8" Quick Connect Port - IFilters
PRO+AQUA

Brine Valve Assembly with 3/8" Quick Connect Port

A-60084
in stock
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

Brine Valve Assembly with 3/8" Quick Connect Line Port. Fits PRO+AQUA Softener and Filter Valves.

$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00
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