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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

3/4 Inch NPT Male Plastic Nipple Hex Connector With O-rings
Hydronix

3/4 Inch NPT Male Plastic Nipple Hex Connector With O-rings

NP-34
in stock
$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99

3/4" NPT Nipple Male Plastic Connector is made from Polypropylene. The Center has a Hex shape to allow tool installation.

$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
Aquatrol AT-1044BL-25T 10 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol AT-1044BL-25T 10 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol

Aquatrol AT-1044BL-25T 10 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

AT-1044BL-25T
in stock
$86.92 - $86.92
$86.92
$86.92 - $86.92
$86.92

Aquatrol AT-1044BL-25T 10 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

$86.92 - $86.92
$86.92
$86.92 - $86.92
$86.92
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
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
HDF-UE06 3/8" x 3/8" Quick Connect Elbow - IFilters
Hydrofit

HDF-UE06 3/8" x 3/8" Quick Connect Elbow

HDF-UE06
in stock
$1.99 - $1.99
$1.99
$1.99 - $1.99
$1.99

3/8" In/Out Female Quick Connect Elbow. These Quick Connect Fittings are designed to provide all the typical benefits and ease of use of a quick co...

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$1.99 - $1.99
$1.99
$1.99 - $1.99
$1.99
HYDROFIT 1/4" Tube x 1/4" Tube Inline Ball Valve – HDF-BVI04 – Durable Shutoff Valve for Fluid Control - IFilters
Hydrofit

HYDROFIT 1/4" Tube x 1/4" Tube Inline Ball Valve – HDF-BVI04 – Durable Shutoff Valve for Fluid Control

HDF-BVI04
in stock
$7.16 - $7.16
$7.16
$7.16 - $7.16
$7.16

The Hydrofit 1/4" Tube x 1/4" Tube Inline Ball Valves are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the...

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$7.16 - $7.16
$7.16
$7.16 - $7.16
$7.16
Polaris Scientific Ultraviolet Replacement Quartz Sleeve For UVA-6C UV Systems - IFilters
Polaris Scientific

Polaris Scientific Ultraviolet Replacement Quartz Sleeve For UVA-6C UV Systems

QS24
in stock
$23.23 - $23.23
$23.23
$23.23 - $23.23
$23.23

Polaris Scientific QS24 Replacement Quartz Sleeve for the UVA-6C Ultraviolet UV System. Natural quartz sleeve to protect the lamp and allow the max...

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$23.23 - $23.23
$23.23
$23.23 - $23.23
$23.23
PA-E 4.5 gal (3.2 usable) Reverse Osmosis Storage Water Tank - Black, 1/4" Port - IFilters
PA-E 4.5 gal (3.2 usable) Reverse Osmosis Storage Water Tank - Black, 1/4" Port
Hydronix

PA-E 4.5 gal (3.2 usable) Reverse Osmosis Storage Water Tank - Black, 1/4" Port

RO-132-BLK14
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
Filter Housing 20" For Water Systems & Hydroponics, Blue/Black 3/4" Ports w/PR
Filter Housing 20" For Water Systems & Hydroponics, Blue/Black 3/4" Ports w/PR
Hydronix

Filter Housing 20" For Water Systems & Hydroponics, Blue/Black 3/4" Ports w/PR

HF5-20BLBK34PR
in stock
$40.04 - $40.04
$40.04
$40.04 - $40.04
$40.04

Hydronix HF5-20BLBK34PR (with Pressure Relief Button) Blue Filter Housings are made to house 2.5" x 20” cartridges. Most 2.5" x 20” cartridges fit ...

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$40.04 - $40.04
$40.04
$40.04 - $40.04
$40.04
Hydronix 5" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/2" Ports
Hydronix

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

HF2-5CLWH12
in stock
$19.25 - $19.25
$19.25
$19.25 - $19.25
$19.25

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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$19.25 - $19.25
$19.25
$19.25 - $19.25
$19.25
Hydronix 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 3/8" Ports
Hydronix 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 3/8" Ports
Hydronix

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

HF2-10CLWH38
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 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
316 Stainless Steel High Flow Filter Housing, 4.5"x20", 1" Ports - IFilters
HydroScientific

316 Stainless Steel High Flow Filter Housing, 4.5"x20", 1" Ports

HF4520SS316-10
in stock
$436.45 - $436.45
$436.45
$436.45 - $436.45
$436.45

The HF4520SS316-10 is a dependable filter housing suitable for various filtration applications. Constructed from durable 316 stainless steel, it of...

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$436.45 - $436.45
$436.45
$436.45 - $436.45
$436.45
316 Stainless Steel High Flow Filter Housing, 4.5"x20", 1" Ports - IFilters
HydroScientific

HydroScientific HF4520SS-10 - Stainless Steel High Flow Filter Housing

HF4520SS-10
in stock
$299.94 - $299.94
$299.94
$299.94 - $299.94
$299.94

HydroScientific HF4520SS-10 – Stainless Steel High-Flow Filter Housing The HF4510SS-10 is a durable and reliable stainless steel filter housing des...

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$299.94 - $299.94
$299.94
$299.94 - $299.94
$299.94
PRO+AQUA 3/8in x 5ft Black Brine Tubing - IFilters
PRO+AQUA

PRO+AQUA 3/8in x 5ft Black Brine Tubing

PT06-BK-5
in stock
$8.99 - $8.99
$8.99
$8.99 - $8.99
$8.99

Water softener brine line hose, 5 foot, 3/8". Compatible with most systems that use 3/8" Quick Connect (Push-in) lines. Manufactured to be highly r...

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$8.99 - $8.99
$8.99
$8.99 - $8.99
$8.99
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 RO or Filtered Water Faucet, Antique Brass - IFilters
Hydronix

Reverse Osmosis Faucet Modern Design, Ceramic, Antique Bronze

LF-EC25-AZ
in stock
$40.50 - $40.50
$40.50
$40.50 - $40.50
$40.50

Hydronix LF-EC25-AZ Ceramic Faucet is a antique bronze faucet that can be used in reverse osmosis and drinking water systems. The LF-EC25-AZ faucet...

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$40.50 - $40.50
$40.50
$40.50 - $40.50
$40.50
Polaris Scientific GL17SE4P – 17W UV Germicidal Replacement Lamp for UV-4C Systems
Polaris Scientific

Polaris Scientific GL17SE4P UV Ultraviolet Replacement Lamp, 17W For UV-4C UV Systems

GL17SE4P
in stock

$23.36 - $23.36
$23.36
$23.36 - $23.36
$23.36

Polaris Scientific GL17SE4P – 17W UV Germicidal Replacement Lamp for UV-4C Systems The Polaris Scientific GL17SE4P is a high-performance ultraviole...

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$23.36 - $23.36
$23.36
$23.36 - $23.36
$23.36
Aquatrol - PMP-100GPD - 125PSI - Diaphragm Pump
Aquatrol

Aquatrol - PMP-100GPD - 125PSI - Diaphragm Pump - 100 GPD Reverse Osmosis Booster Pump, 24v

PMP-100GPD
in stock

$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Aquatrol - PMP-100GPD - 125PSI - Diaphragm Pump - 100 GPD Reverse Osmosis Booster Pump, 24v for 100 GPD Reverse Osmosis Water Filtration Systems. C...

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$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
Water Filter Housing, House Commercial Hydroponics Clear BB Size 10", 1.5" Ports
Hydronix

Water Filter Housing, House Commercial Hydroponics Clear BB Size 10", 1.5" Ports

HF45-20CLBK15
in stock
$87.28 - $87.28
$87.28
$87.28 - $87.28
$87.28

The Hydronix HF45-20CLBK15 (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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$87.28 - $87.28
$87.28
$87.28 - $87.28
$87.28
Hydronix Long Reach Reverse Osmosis or Filtered Water Faucet, Chrome - IFilters
Hydronix

Hydronix Long Reach Reverse Osmosis or Filtered Water Faucet, Chrome

LF-BLR
in stock
$22.00 - $22.00
$22.00
$22.00 - $22.00
$22.00

Hydronix LF-BLR long REACH faucet is a chrome plated faucet that can be used in reverse Osmosis and Drinking water systems. The LF-BLR faucet featu...

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$22.00 - $22.00
$22.00
$22.00 - $22.00
$22.00
Hydronix 10" White Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports
Hydronix

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

HF2-10WHWH14
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, 3/4" Ports
Hydronix 10" Blue Housing w/ Black Rib Cap, RO & Filtration Systems, 3/4" Ports
Hydronix

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

HF3-10BLBK34
in stock
$17.86 - $17.86
$17.86
$17.86 - $17.86
$17.86

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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$17.86 - $17.86
$17.86
$17.86 - $17.86
$17.86
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
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