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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!

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24V AC Power Adapter for Softener and Filtration Systems - IFilters
PRO+AQUA

24V AC Power Adapter for Softener and Filtration Systems

IFA-19674
in stock

$21.95 - $21.95
$21.95
$21.95 - $21.95
$21.95

24V AC power adapter for Softener and Filtration Systems using a 24V Electronic Valve Head. Compatible with any softener or filtration system using...

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$21.95 - $21.95
$21.95
$21.95 - $21.95
$21.95
Aquatrol AQT-MFV-1 Manual Filter Valve
Aquatrol AQT-MFV-1 Manual Filter Valve – 3-Cycle Control for 2.5" Port Tanks
Aquatrol

Aquatrol AQT-MFV-1 Adjustable 3 cycle control Manual Filter Valve For 2.5" Port Tanks.

AQT-MFV-1
in stock

$54.95 - $54.95
$54.95
$54.95 - $54.95
$54.95

Aquatrol AQT-MFV-1 Manual Filter Valve – 3-Cycle Control for 2.5" Port Tanks The Aquatrol AQT-MFV-1 Manual Filter Valve is a high-quality, easy-to-...

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$54.95 - $54.95
$54.95
$54.95 - $54.95
$54.95
O-Ring For HF2, HF3 and HF4 Filter Housings - IFilters
Hydronix

O-Ring For HF2, HF3 and HF4 Filter Housings

HF2/3-ORING
in stock

$0.59 - $0.59
$0.59
$0.59 - $0.59
$0.59

Replacement O-Ring for the Hydronix HF2, HF3 and HF4 filter housings. These replacement O-Rings are made to be used with the Opaque or Clear HF2, H...

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$0.59 - $0.59
$0.59
$0.59 - $0.59
$0.59
FLK-PAD Variations
FlowLok

Replacement Pads for Flowlok Leak Detector Safety Valve, 2 Pack

FLK-PAD-2
in stock

$9.99 - $9.99
$9.99
$9.99 - $9.99
$9.99

Flowlok leak detector replacement pads. Pack of 2. The Flowlok leak detector automatically shuts off the water when a leak occurs. This Flowlok dev...

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$9.99 - $9.99
$9.99
$9.99 - $9.99
$9.99
Booster Pump Kit for Reverse Osmosis RO DI Systems Up To 100 GPD, 1/4" QC Ports - IFilters
Booster Pump Kit for Reverse Osmosis RO DI Systems Up To 100 GPD, 1/4" QC Ports - IFilters
Hydronix

Booster Pump Kit for Reverse Osmosis RO DI Systems Up To 100 GPD, 1/4" QC Ports

BP100KIT
in stock

$95.81 - $95.81
$95.81
$95.81 - $95.81
$95.81

iFilters has combined top quality components to create the best RO DI booster pump in the market. The BP100KIT includes all the components needed t...

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$95.81 - $95.81
$95.81
$95.81 - $95.81
$95.81
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, 40 PSI

SB-FPV-40
in stock

$12.49 - $12.49
$12.49
$12.49 - $12.49
$12.49

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

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$12.49 - $12.49
$12.49
$12.49 - $12.49
$12.49
Pressure Regulator Protection Valve for RO & Filter Systems, 3/8" QC, 70 PSI - IFilters
Shok Blok

Pressure Regulator Protection Valve for RO & Filter Systems, 3/8" QC, 70 PSI

SB-FPV-70/38
in stock

$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99

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

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$15.99 - $15.99
$15.99
$15.99 - $15.99
$15.99
3/8" OD Natural Polyethylene Tubing - 500 Ft - IFilters
Hydrofit

3/8" OD Natural Polyethylene Tubing - 500 Ft

PT06-NA-0500
in stock

$77.00 - $77.00
$77.00
$77.00 - $77.00
$77.00

The PT06-NA-0500 Natural Polyethylene tubing is manufactured from top quality, low density materials. The PT06-NA-0500 is ideal for a variety of us...

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$77.00 - $77.00
$77.00
$77.00 - $77.00
$77.00
2 Pack 1/4" Quick Connect x 1/4" NPT Fittings, Reverse Osmosis Filter Systems - IFilters
iFilters

2 Pack 1/4" Quick Connect x 1/4" NPT Fittings, Reverse Osmosis Filter Systems

MC0404/2
in stock

$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99

These 1/4" Tube x 1/4" NPT fittings are designed for ease of use. One end has threads and the other converts to Quick Connect to convert any port t...

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$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99
SPV-40CAP12 End Cap for Hydronix SPV-4040-12 RO Vessel, 1pc - IFilters
Hydronix

SPV-40CAP12 End Cap for Hydronix SPV-4040-12 RO Vessel, 1pc

SPV-40CAP12
in stock

$19.99 - $19.99
$19.99
$19.99 - $19.99
$19.99

Hydronix End Cap for Hydronix SPV-4040-12, 4" with 1/2" Ports, Black. This Hydronix end cap is made from Glass Reinforced Polyamide O-rings preinst...

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$19.99 - $19.99
$19.99
$19.99 - $19.99
$19.99
Booster Pump Kit for Reverse Osmosis RO DI Systems Up To 50 GPD, 1/4" QC Ports - IFilters
Booster Pump Kit for Reverse Osmosis RO DI Systems Up To 50 GPD, 1/4" QC Ports - IFilters
Hydronix

Booster Pump Kit for Reverse Osmosis RO DI Systems Up To 50 GPD, 1/4" QC Ports

BP50KIT
in stock

$135.99 - $135.99
$135.99
$135.99 - $135.99
$135.99

iFilters has combined top quality components to create the best RO DI booster pump in the market. The BP50KIT includes all the components needed to...

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$135.99 - $135.99
$135.99
$135.99 - $135.99
$135.99
Hydronix UDF-45PAD - Replacement Pad for 4.5" Empty Filter Cartridges
Hydronix

Hydronix UDF-45PAD Replacement Pad for 4.5" Empty Filter Cartridges

UDF-45PAD
in stock

$3.00 - $3.00
$3.00
$3.00 - $3.00
$3.00

Hydronix UDF-45PAD - Replacement Pad for 4.5" Empty Filter Cartridges Polypropylene Filter Cartridge Pad for 4.5" Refillable Water Filter Cartridge...

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$3.00 - $3.00
$3.00
$3.00 - $3.00
$3.00
Hydronix PG25160L - 0-160 PSI Water Pressure Gauge 2.5" Stainless Steel 1/4" Port NPT, Lower Mount - IFilters
Hydronix

Hydronix PG25160L - 0-160 PSI Water Pressure Gauge 2.5" Stainless Steel 1/4" Port NPT, Lower Mount

PG25160L
in stock

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

The PG25160L is UV resistant, high-quality water pressure gauge designed with the OEM in mind. From the special synthetic fluid used to fill the ga...

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$14.25 - $14.25
$14.25
$14.25 - $14.25
$14.25
3.2 Gallon SS Reverse Osmosis Storage Water Tank, Small Size - White, 1/4" Port
3.2 Gallon SS Reverse Osmosis Storage Water Tank, Small Size - White, 1/4" Port
Hydronix

3.2 Gallon SS Reverse Osmosis Storage Water Tank, Small Size - White, 1/4" Port

RO-122-W14
in stock

$45.95 - $45.95
$45.95
$45.95 - $45.95
$45.95

The PAE RO-122 Reverse Osmosis tanks features a virgin polypropylene liner, high-grade chlorobutyl diaphragm and stainless steel 1/4" MPT water con...

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$45.95 - $45.95
$45.95
$45.95 - $45.95
$45.95
Reverse Osmosis (RO) Tank Ball Valve 3/8" Quick Connect x 1/4" Female NPT - IFilters
Hydrofit

Reverse Osmosis (RO) Tank Ball Valve 3/8" Quick Connect x 1/4" Female NPT

HDF-BVT0604
in stock

$6.38 - $6.38
$6.38
$6.38 - $6.38
$6.38

The HDF-BVT0604 HYDROFIT™ Quick Connect Fittings are designed to provide all the typical benefits and ease of use of a quick connect t fitting whil...

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$6.38 - $6.38
$6.38
$6.38 - $6.38
$6.38
Polaris Scientific GL10SE4P UV Ultraviolet Replacement Lamp, Germicidal Lamp, 10W 4 Pin - IFilters
Polaris Scientific GL10SE4P – 10W UV Ultraviolet Germicidal Replacement Lamp (4-Pin) for UV-1C System
Polaris Scientific

Polaris Scientific GL10SE4P UV Ultraviolet Replacement Lamp, Germicidal Lamp, 10W 4 Pin

GL10SE4P
in stock

$17.48 - $17.48
$17.48
$17.48 - $17.48
$17.48

Polaris Scientific GL10SE4P – 10W UV Ultraviolet Germicidal Replacement Lamp (4-Pin) for UV-1C System The Polaris Scientific GL10SE4P is a high-qua...

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$17.48 - $17.48
$17.48
$17.48 - $17.48
$17.48
FLOWLOK Safety Kit – Undersink RO Filtration System Water Leak Detector Safety Valve Kit with Tray
FlowLok

FLOWLOK Safety Kit – Undersink RO Filtration System Water Leak Detector Safety Valve Kit with Tray

FLK-KIT
in stock

$25.99 - $25.99
$25.99
$25.99 - $25.99
$25.99

FLOWLOK Safety Kit – Leak Protection for Water Filters (FLK-KIT 1/4" or FLK-KIT38 3/8") FLK-KIT | FLK KIT38 FLOWLOK Safety Kit – Ultimate Leak Prot...

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$25.99 - $25.99
$25.99
$25.99 - $25.99
$25.99
Hydronix SPV-4040-12 SS Membrane Housing 4"x40" 1/2" Ports - IFilters
Hydronix

Hydronix SPV-4040-12 SS Membrane Housing 4"x40" 1/2" Ports

SPV-4040-12
in stock

$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99

The Hydronix SPV-4040-12 4" x 40" Stainless Steel Pressure Vessel is designed for use in commercial reverse osmosis, nanofiltration and ultrafiltra...

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$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99
Hydronix SPV-4021-12 Stainless Steel Membrane Housing – 4" x 21", 1/2" Ports
Hydronix

Hydronix SPV-4021-12 4"x21" Stainless Steel Membrane Housing 1/2" Ports

SPV-4021-12
in stock

$149.99 - $149.99
$149.99
$149.99 - $149.99
$149.99

Hydronix SPV-4021-12 Stainless Steel Membrane Housing – 4" x 21", 1/2" Ports The Hydronix SPV-4021-12 is a high-quality stainless steel pressure ve...

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$149.99 - $149.99
$149.99
$149.99 - $149.99
$149.99
Reverse Osmosis Membrane Housing For Standard 12" membranes, 1/8" NPT Ports - IFilters
Hydronix

Reverse Osmosis Membrane Housing For Standard 12" membranes, 1/8" NPT Ports

MH03-1812WH
in stock

$13.77 - $13.77
$13.77
$13.77 - $13.77
$13.77

The Hydronix MH03-1812WH Membrane Housings are manufactured with high-quality NSF approved material and will accommodate standard membrane elements...

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$13.77 - $13.77
$13.77
$13.77 - $13.77
$13.77
Hydronix BSV-38110VW - Brass Solenoid Valve, 110V 50/60Hz, 3/8" FNPT (Normally Closed)
Hydronix

Hydronix BSV-38110VW Brass Solenoid Valve, Closed, 110V 50/60hz, 3/8" FNPT

BSV-38110VW
in stock

$74.42 - $74.42
$74.42
$74.42 - $74.42
$74.42

Hydronix BSV-38110VW - Brass Solenoid Valve, 110V 50/60Hz, 3/8" FNPT (Normally Closed) The Hydronix BSV-38110VW is a high-performance brass solenoi...

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$74.42 - $74.42
$74.42
$74.42 - $74.42
$74.42
PG25160B 0 - 160 PSI Water Pressure Gauge 2.5" Stainless Steel 1/4" Port, Back Flange - IFilters
Hydronix

PG25160B 0 - 160 PSI Water Pressure Gauge 2.5" Stainless Steel 1/4" Port, Back Flange

PG25160B
in stock

$19.50 - $19.50
$19.50
$19.50 - $19.50
$19.50

The PG25160B is UV resistant, high quality water pressure gauge designed with the OEM in mind. From the special synthetic fluid used to fill the ga...

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$19.50 - $19.50
$19.50
$19.50 - $19.50
$19.50
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
Reverse Osmosis RO Flush Kit Valve For Any Standard RO System, 1/4" QC Ports - IFilters
iFilters

Reverse Osmosis RO Flush Kit Valve For ANY Standard RO System, 1/4" QC Ports

RO-FLUSH
in stock

$9.50 - $9.50
$9.50
$9.50 - $9.50
$9.50

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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$9.50 - $9.50
$9.50
$9.50 - $9.50
$9.50
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