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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

(2 Pack) Genuine Hydro Guard HDG-CB6-14/2 - CB6 Carbon Block Water Filter For MP Systems
HDG-CB-6-14 Variations
Hydro Guard

(2 Pack) Genuine Hydro Guard HDG-CB6-14/2 - CB6 Carbon Block Water Filter For MP Systems

HDG-CB6-14/2
in stock

$64.99 - $64.99
$64.99
$64.99 - $64.99
$64.99

(2 Pack) Genuine Hydro Guard HDG-CB6-14 Carbon Block Water Filter – Compatible with MP Systems Only looking for 1 filter? Order here: HDG-CB6-14 Th...

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$64.99 - $64.99
$64.99
$64.99 - $64.99
$64.99
Aquatrol

Aquatrol AQT-TH34-25 3/4" In and Out Water Softener or Filter Head For 2.5" Port Tanks

AQT-TH34-25
in stock

$24.95 - $24.95
$24.95
$24.95 - $24.95
$24.95

Aquatrol AQT-TH34-25 3/4" In & Out Water Softener or Filter Head – Fits 2.5" Port Tanks The Aquatrol AQT-TH34-25 Water Softener & Filter He...

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$24.95 - $24.95
$24.95
$24.95 - $24.95
$24.95
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 TB-65-54T Distributor Riser Tube w/ Fine Mesh Basket For 54" Tanks, 1.05" OD - IFilters
Aquatrol

Aquatrol TB-65-54T Distributor Riser Tube w/ Fine Mesh Basket For 54" Tanks, 1.05" OD

TB-65-54T
in stock

$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99

Aquatrol TB-65 Distributor Riser Tube with Fine Mesh Basket – Fits 54" Tanks (1.05" OD) The Aquatrol TB-65-54T Distributor Riser Tube is a high-qua...

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$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99
Hydro Guard HDG-CB6-14 (CB6) Carbon Block Water Filter Replacement Cartridge NSF-certified
Hydro Guard HDG-CB6-14 (CB6) Carbon Block Water Filter Replacement Cartridge NSF-certified
Hydro Guard

Hydro Guard HDG-CB6-14 (CB6) Carbon Block Water Filter Replacement Cartridge NSF-certified

HDG-CB6-14
in stock

$35.99 - $35.99
$35.99
$35.99 - $35.99
$35.99

Hydro Guard HDG-CB6-14 Carbon Block Water Filter – CB6 Compatible Replacement Cartridge (NSF) The Hydro Guard HDG-CB6-14 Carbon Block Water Filter ...

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$35.99 - $35.99
$35.99
$35.99 - $35.99
$35.99
O-RINGS Variations
Hydronix

O-Ring For HF45 Filter Housing

HF45-ORING
in stock

$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55

Replacement O-Ring for the Hydronix HF45 filter housings. Made from durable Buna-N material. This replacement O-Ring is made to be used with the Op...

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$2.55 - $2.55
$2.55
$2.55 - $2.55
$2.55
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
Aquatrol

Aquatrol - AQT-TH1-25 - 1" In and Out Water Softener or Filter Head For 2.5" Port Tanks

AQT-TH1-25
in stock

$24.95 - $24.95
$24.95
$24.95 - $24.95
$24.95

Aquatrol AQT-TH1-25 – 1" In & Out Water Softener or Filter Head for 2.5" Port Tanks The Aquatrol AQT-TH1-25 Water Softener & Filter Head is...

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$24.95 - $24.95
$24.95
$24.95 - $24.95
$24.95
Aquatrol TD-1203 Top Upper Distributor Fine Mesh Basket – Fits 1.05" Riser Tubes
Aquatrol

Aquatrol TD-1203 Top Upper Distributor Fine Mesh Basket, Aquatrol, Fleck, Clack, Autotrol, 1.05" ID

TD-1203
in stock

$8.50 - $8.50
$8.50
$8.50 - $8.50
$8.50

Aquatrol TD-1203 Top Upper Distributor Fine Mesh Basket – Fits 1.05" Riser Tubes The Aquatrol TD-1203 Top Upper Distributor Fine Mesh Basket is a h...

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$8.50 - $8.50
$8.50
$8.50 - $8.50
$8.50
O-RINGS Variations
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
Polaris Scientific EB-2439 Ultraviolet Water UV System Ballast, 24W - 39W 110V/220V - IFilters
Polaris Scientific EB-2439 Ultraviolet UV System Ballast – 24W-39W, 110V/220V
Polaris Scientific

Polaris Scientific EB-2439 Ultraviolet Water UV System Ballast, 24W - 39W 110V/220V

EB-2439
in stock

$45.99 - $45.99
$45.99
$45.99 - $45.99
$45.99

Polaris Scientific EB-2439 Ultraviolet UV System Ballast – 24W-39W, 110V/220V The Polaris Scientific EB-2439 is a high-quality OEM replacement ball...

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$45.99 - $45.99
$45.99
$45.99 - $45.99
$45.99
PRO+AQUA

PRO+AQUA RV Filter and Water Softener Regeneration Kit for Sediment, Chlorine, Odor, Taste

WS-P-REG-KITV2
Out of stock

$62.00 - $62.00
$62.00
$62.00 - $62.00
$62.00

This system is used as a pre-filter when filling your RV/Boat tank and used as a regeneration kit when regenerating your water softener. Great for ...

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$62.00 - $62.00
$62.00
$62.00 - $62.00
$62.00
Diverter Valve Faucet Adapter for Counter Top Water Filters, 1/4 Inch Push On, Chrome - IFilters
iFilters

Diverter Valve Faucet Adapter for Counter Top Water Filters, 1/4 Inch Push On, Chrome

P-DV-14
in stock

$8.99 - $8.99
$8.99
$8.99 - $8.99
$8.99

This Standard Faucet Diverter Valve with Aerator can be installed on most kitchen faucets to divert water to the Countertop, RO or RO/DI uni...

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$8.99 - $8.99
$8.99
$8.99 - $8.99
$8.99
Polaris Scientific GL39PP UV Ultraviolet Replacement Lamp, Germicidal Lamp, 39W - IFilters
Polaris Scientific GL39PP UV Ultraviolet Replacement Lamp, Germicidal Lamp, 39W - IFilters
Polaris Scientific

Polaris Scientific GL39PP UV Ultraviolet Replacement Lamp, Germicidal Lamp, 39W

GL39PP
in stock

$46.55 - $46.55
$46.55
$46.55 - $46.55
$46.55

Polaris Scientific GL39PP Replacement Germicidal Lamp for the UVA-12C, UVA-24B, UVA-36B, UVA-50B, UVA-60B, UVA-80B and UVA-100B Ultraviolet UV System.

$46.55 - $46.55
$46.55
$46.55 - $46.55
$46.55
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
(6 Pack) Hydro Guard HDG-P117/6 Premium GAC Water Filter Cartridge - Interchangeable with AP117
(6 Pack) Hydro Guard HDG-P117/6 Premium GAC Water Filter Cartridge - Interchangeable with AP117
Hydro Guard

(6 Pack) Hydro Guard HDG-P117/6 Premium GAC Water Filter Cartridge - Interchangeable with AP117

HDG-P117/6
in stock

$41.60 - $41.60
$41.60
$41.60 - $41.60
$41.60

(6 Pack) Hydro Guard HDG-P117/6 Premium GAC Water Filter Cartridge – AP117 Compatible Replacement The (6 Pack) Hydro Guard HDG-P117/6 Granular Acti...

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$41.60 - $41.60
$41.60
$41.60 - $41.60
$41.60
Shok Blok Filter Protection Valve, 40psi, 3/8" - IFilters
Pressure Regulator Protection Valve for RO & Filter Systems, 1/4" QC, 40 PSI
Shok Blok

Shok Blok Filter Protection Valve, 40psi, 3/8"

SB-FPV-40/38
in stock

$13.25 - $13.25
$13.25
$13.25 - $13.25
$13.25

SHOK BLOK Filter Protection Valves are you best choice for protecting and limiting water pressure to your water filtration device. This SHOK BLOK M...

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$13.25 - $13.25
$13.25
$13.25 - $13.25
$13.25
iFilters O-Ring Fits Any BB Housing Buna-N, 3 Pack - IFilters
iFilters

iFilters O-Ring Fits Any BB Housing Buna-N, 3 Pack

ORING-45/3
in stock

$11.19 - $11.19
$11.19
$11.19 - $11.19
$11.19

This 3 pack O-Rings by iFilters are used to seal water filter housings. It has an ID of 5-1/2" and OD of just over 5-3/4 inches and is made of nitr...

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$11.19 - $11.19
$11.19
$11.19 - $11.19
$11.19
Aquatrol IFA-07220F Circuit Board – OEM Replacement for 56E Softener & Filter Valves
Aquatrol

Aquatrol IFA-07220F Circuit Board for 56E Softener and Filter Valve

IFA-07220F
in stock
$149.95 - $149.95
$149.95
$149.95 - $149.95
$149.95

Aquatrol IFA-07220F Circuit Board – OEM Replacement for 56E Softener & Filter Valves The Aquatrol IFA-07220F Circuit Board is a genuine OEM rep...

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$149.95 - $149.95
$149.95
$149.95 - $149.95
$149.95
Hydronix HF3-CAP34BKPR Black Rib Cap with 3/4" NPT Ports & Pressure Relief Button
Hydronix

Hydronix HF3-CAP34BKPR Black Rib Cap with 3/4" NPT ports and Pressure Relief buttons

HF3-CAP34BKPR
in stock

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

Hydronix HF3-CAP34BKPR Black Rib Cap with 3/4" NPT Ports & Pressure Relief Button The Hydronix HF3-CAP34BKPR is an OEM replacement cap designed...

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$6.99 - $6.99
$6.99
$6.99 - $6.99
$6.99
Polaris Scientific Ultraviolet Water UV System New Style Ballast, 24W - 39W 110v - IFilters
Polaris Scientific

Polaris Scientific Ultraviolet Water UV System New Style Ballast, 24W - 39W 110v

BEB-2439
in stock

$41.74 - $41.74
$41.74
$41.74 - $41.74
$41.74

Polaris Scientific BEB-2439 ballast for the UVA-6C, UVA-8C and UVA-12C Ultraviolet UV Systems. 24W-39W 110V/220V Used with the GL24PP, GL32PP and ...

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$41.74 - $41.74
$41.74
$41.74 - $41.74
$41.74
Aquatrol RO-6.0-W14 6-Gallon Pre-Pressurized Reverse Osmosis Water Storage Tank – White
iFilters

RO-6.0-W14 Reverse Osmosis Water Storage Tank 6 Gallon (5.5 Draw-Down) - White, 1/4" Port

RO-6.0-W14
in stock

$48.99 - $48.99
$48.99
$48.99 - $48.99
$48.99

$48.99 - $48.99
$48.99
$48.99 - $48.99
$48.99
Hydronix Tubing Variations
Hydrofit

1/4" OD Natural Polyethylene Tubing - 500 Ft

PT04-NA-0500
in stock
$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00

The PT04-NA-0500 Natural Polyethylene tubing is manufactured from top quality, low density materials. The PT04-NA-0500 is ideal for a variety of us...

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$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00
Polaris Scientific UV Ultraviolet Replacement Lamp, Germicidal Lamp, 10W 4 Pin
Polaris Scientific UV Ultraviolet Replacement Lamp, Germicidal Lamp, 10W 4 Pin
Polaris Scientific

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

GL10PP
in stock

$18.99 - $18.99
$18.99
$18.99 - $18.99
$18.99

Polaris Scientific GL10PP Replacement Germicidal Lamp for the UVA-1C Ultraviolet UV System.

$18.99 - $18.99
$18.99
$18.99 - $18.99
$18.99
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