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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

Hydronix PFM-NUT-34 PFM Replacement Nut, 3/4" MNPT for PFM-210, and AFM-216 - IFilters
Hydronix PFM-NUT-34 PFM Replacement Nut, 3/4" MNPT for PFM-210, and AFM-216 - IFilters
Hydronix

Hydronix PFM-NUT-34 PFM Replacement Nut, 3/4" MNPT for PFM-210, and AFM-216

PFM-NUT-34
in stock
$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99

$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99
Aquatrol AT-1465BK-25T 14 x 65 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol AT-1465BK-25T 14 x 65 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-1465BK-25T 14 x 65 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

AT-1465BK-25T
in stock
$0.00 - $0.00
$0.00
$290.75
$290.75 - $290.75
$290.75

Aquatrol AT-1465BK-25T 14 x 65 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

$0.00 - $0.00
$0.00
$290.75
$290.75 - $290.75
$290.75
Aquatrol AT-1252BL-25T 12 x 52 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol AT-1252BL-25T 12 x 52 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue - IFilters
Aquatrol

Aquatrol AT-1252BL-25T 12 x 52 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

AT-1252BL-25T
in stock
$166.35 - $166.35
$166.35
$166.35 - $166.35
$166.35

Aquatrol AT-1252BL-25T 12 x 52 Pg Pressure Tank - 2.5” T Connection, Standard Base, Blue

$166.35 - $166.35
$166.35
$166.35 - $166.35
$166.35
Hydronix SPV-4021-12 Stainless Steel Membrane Housing – 4" x 21", 1/2" Ports
Hydronix

Hydronix SPV-2521 2.5"x21" Stainless Steel Membrane Housing 300 PSI, 3/8" Ports

SPV-2521
in stock
$155.00 - $155.00
$155.00
$155.00 - $155.00
$155.00

Hydronix SPV-2521 Stainless Steel Membrane Housing – 2.5" x 21", 300 PSI, 3/8" Ports The Hydronix SPV-2521 Stainless Steel Membrane Housing is a hi...

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$155.00 - $155.00
$155.00
$155.00 - $155.00
$155.00
Polaris Scientific QS58HO – Replacement Quartz Sleeve for UVA-630HO High Output UV System
Polaris Scientific

Polaris Scientific QS58HO High Output Ultraviolet Replacement Quatz Sleeve

QS58HO
in stock
$58.20 - $58.20
$58.20
$58.20 - $58.20
$58.20

Polaris Scientific QS58HO – Replacement Quartz Sleeve for UVA-630HO High Output UV System The Polaris Scientific QS58HO is an OEM replacement quart...

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$58.20 - $58.20
$58.20
$58.20 - $58.20
$58.20
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
BV-1414-MC Brass Valve - IFilters
Hydronix

BV-1414-MC Brass Valve

BV-1414-MC
in stock
$5.75 - $5.75
$5.75
$5.75 - $5.75
$5.75

The Hydrofit Brass Ball Valve Straight is a 1/4" MPT x 1/4" Feed Water Valve

$5.75 - $5.75
$5.75
$5.75 - $5.75
$5.75
2 gal SS Reverse Osmosis Water Tank, Compact Size, RVs, Campers, White 1/4" Port - IFilters
2 gal SS Reverse Osmosis Water Tank, Compact Size, RVs, Campers, White 1/4" Port
Hydronix

2 gal SS Reverse Osmosis Water Tank, Compact Size, RVs, Campers, White 1/4" Port

RO-120-W14
in stock
$46.00 - $46.00
$46.00
$46.00 - $46.00
$46.00

The PAE RO-120 Reverse Osmosis tanks features a virgin polypropylene liner, high-grade chlorobutyl diaphragm and stainless steel 1/4" MPT water con...

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$46.00 - $46.00
$46.00
$46.00 - $46.00
$46.00
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, 125 PSI

SB-FPV-125
in stock
$12.30 - $12.30
$12.30
$12.30 - $12.30
$12.30

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

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$12.30 - $12.30
$12.30
$12.30 - $12.30
$12.30
Hydronix HF45-10BLBK34PR Water Filter Housing NSF listed 10" - 3/4" Ports w/ PR
Hydronix HF45-10BLBK34PR Water Filter Housing NSF listed 10" - 3/4" Ports w/ PR
Hydronix

Hydronix HF45-10BLBK34PR Water Filter Housing NSF listed 10" - 3/4" Ports w/ PR

HF45-10BLBK34PR
in stock
$40.19 - $40.19
$40.19
$40.19 - $40.19
$40.19

The Hydronix HF45-10BLBK34PR 10" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing...

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$40.19 - $40.19
$40.19
$40.19 - $40.19
$40.19
Hydronix HF45-10BLBK10 Water Filter Housing NSF listed 10" - 1" Ports
Hydronix

Hydronix HF45-10BLBK10 Water Filter Housing NSF listed 10" - 1" Ports

HF45-10BLBK10
in stock
$39.67 - $39.67
$39.67
$39.67 - $39.67
$39.67

The Hydronix HF45-10BLBK10 10" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. It is made of ...

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$39.67 - $39.67
$39.67
$39.67 - $39.67
$39.67
Hydronix 5" White Housing w/ White Flat Cap, RO & Filtration Systems, 1/4" Ports
Hydronix

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

HF2-5WHWH14
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 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports
Hydronix 10" Clear Housing w/ White Flat Cap, RO & Filtration Systems 1/4" Ports
Hydronix

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

HF2-10CLWH14
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 10" Blue Housing w/ Black Rib Cap, RO & Filtration 3/4" Ports w/ Relief
Hydronix

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

HF3-10BLBK34PR
in stock
$18.36 - $18.36
$18.36
$18.36 - $18.36
$18.36

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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$18.36 - $18.36
$18.36
$18.36 - $18.36
$18.36
Aquatrol AT-0835BK-25T 8 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol AT-0835BK-25T 8 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-0835BK-25T 8 x 35 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

AT-0835BK-25T
in stock
$91.99 - $91.99
$91.99
$91.99 - $91.99
$91.99

AQUATROL™ PRESSURE TANKS Aquatrol™ Pressure Tanks provide cost-effective reliability for residential and commercial applications. Available in size...

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$91.99 - $91.99
$91.99
$91.99 - $91.99
$91.99
Aquatrol AT-1354BK-25T 13 x 54 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol AT-1354BK-25T 13 x 54 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-1354BK-25T 13 x 54 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

AT-1354BK-25T
in stock
$183.57 - $183.57
$183.57
$183.57 - $183.57
$183.57

Aquatrol AT-1354BK-25T 13 x 54 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

$183.57 - $183.57
$183.57
$183.57 - $183.57
$183.57
Aquatrol AT-0844BK-25T 8 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol AT-0844BK-25T 8 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-0844BK-25T 8 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

AT-0844BK-25T
in stock
$92.05 - $92.05
$92.05
$92.05 - $92.05
$92.05

Aquatrol AT-0844BK-25T 8 x 44 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black

$92.05 - $92.05
$92.05
$92.05 - $92.05
$92.05
Aquatrol AT-1252BK-25T 1252 Pg Pressure Tank - 2.5" T Connection, Standard Base, Black - IFilters
Aquatrol AT-1252BK-25T 1252 Pg Pressure Tank - 2.5" T Connection, Standard Base, Black - IFilters
Aquatrol

Aquatrol AT-1252BK-25T 1252 Pg Pressure Tank - 2.5" T Connection, Standard Base, Black

AT-1252BK-25T
in stock
$143.56 - $143.56
$143.56
$143.56 - $143.56
$143.56

Aquatrol AT-1252BK-25T 1252 Pg, 2.5" T, Standard Base, Black Part Number: AT-1252BK-25TDimensions: 12 x 52 inches (304 x 1320 mm)Connection: 2.5" T...

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$143.56 - $143.56
$143.56
$143.56 - $143.56
$143.56
Hydronix MRH-BC-BOLT Bolt and Nut for MRH Band Clamp Series Housings - IFilters
Hydronix MRH-BC-BOLT Bolt and Nut for MRH Band Clamp Series Housings - IFilters
Hydronix

Hydronix MRH-BC-BOLT Bolt and Nut for MRH Band Clamp Series Housings

MRH-BC-BOLT
in stock
$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

Hydronix MRH-BC-BOLT – Replacement Bolt & Nut for MRH Band Clamp Series Housings The Hydronix MRH-BC-BOLT is a replacement bolt and nut designe...

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$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00
iFilters 5ft 1/4" Polyethylene Tubing for Reverse Osmosis Systems- PT04-WH-5 (White) - IFilters
iFilters

iFilters 5ft 1/4" Polyethylene Tubing for Reverse Osmosis Systems- PT04-WH-5 (White)

PT04-WH-5
in stock
$7.99 - $7.99
$7.99
$7.99 - $7.99
$7.99

iFilters PT04-WH-5 – 5 ft. White 1/4" Polyethylene Tubing – Flexible, Durable & Chemical-Resistant 5ft NSF 1/4" POLYETHYLENE TUBE The iFilters ...

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$7.99 - $7.99
$7.99
$7.99 - $7.99
$7.99
Hydronix Modern Ceramic Reverse Osmosis Filtered Water Faucet, Chrome - IFilters
Hydronix

Reverse Osmosis Air-Gap Faucet Quality Luxury Design, Ceramic Lead Free Parts, Chrome

LF-EC32-CPAG
in stock

$36.99 - $36.99
$36.99
$36.99 - $36.99
$36.99

Hydronix LF-EC32-CPAG ceramic Air-Gap faucet is a chrome plated faucet that can be used in reverse Osmosis and Drinking water systems. The LF-EC32-...

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$36.99 - $36.99
$36.99
$36.99 - $36.99
$36.99
Black Rib Cap with 1/4" ports for HF3 Housings - IFilters
Hydronix

Black Rib Cap with 1/4" ports for HF3 Housings

HF3-CAP14BK
in stock

$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99

Hydronix Rib Cap for HF3 Housings with 1/4" female NPT ports.

$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
Water Filter Housing, House Commercial Hydroponics Clear BB Size 20", 3/4" Ports
Hydronix

Water Filter Housing, House Commercial Hydroponics Clear BB Size 20", 3/4" Ports

HF45-20CLBK34
in stock
$98.95 - $98.95
$98.95
$98.95 - $98.95
$98.95

The Hydronix HF45-20CLBK34 (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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$98.95 - $98.95
$98.95
$98.95 - $98.95
$98.95
Filter Housing 10" NSF For RO, Whole House, Hydroponics, Blue/Black 3/4" Ports
Hydronix

Filter Housing 10" NSF For RO, Whole House, Hydroponics, Blue/Black 3/4" Ports

HF5-10BLBK34
in stock
$22.68 - $22.68
$22.68
$22.68 - $22.68
$22.68

Hydronix HF5-10BLBK34 Filter Housings are made to house 2.5" x 10” cartridges. Most 2.5" x 10” cartridges fit easily. Ideal for typical application...

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$22.68 - $22.68
$22.68
$22.68 - $22.68
$22.68
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