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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

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1/4" OD Blue Polyethylene Tubing - 500 Ft - IFilters
Hydrofit

1/4" OD Blue Polyethylene Tubing - 500 Ft

PT04-BL-0500
in stock

$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00

The PT04-BL-0500 Blue Polyethylene tubing is manufactured from top quality, low density materials. The PT04-BL-0500 is ideal for a variety of uses ...

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$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00
Auto Ship
Inline RO Post Fridge Ice Coconut GAC Water Filter 2000 Gal, 3/8" Quick Connect
Hydronix

Inline RO Post Fridge Ice Coconut GAC Water Filter 2000 Gal, 3/8" Quick Connect

ICF-10Q38
in stock

$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00

Hydronix ICF-10Q38 inline coconut shell carbon filters have 3/8" quick-connect connections, and are suitable for drinking water filtration applicat...

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$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00
1/4" OD White Polyethylene Tubing - 500 Ft - IFilters
Hydrofit

1/4" OD White Polyethylene Tubing - 500 Ft

PT04-WH-0500
in stock

$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00

The PT04-WH-0500 White Polyethylene tubing is manufactured from top quality, low density materials. The PT04-WH-0500 is ideal for a variety of uses...

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$36.00 - $36.00
$36.00
$36.00 - $36.00
$36.00
Auto Ship
Hydronix CB-45-2005 Whole House, Hydroponics, Commercial Carbon Block Water Filter 4.5" x 20" - 5 μm
Hydronix CB-45-2005 Whole House, Hydroponics, Commercial Carbon Block Water Filter 4.5" x 20" - 5 μm
Hydronix

Hydronix CB-45-2005 Whole House, Hydroponics, Commercial Carbon Block Water Filter 4.5" x 20" - 5 μm

CB-45-2005
in stock

$39.50 - $39.50
$39.50
$39.50 - $39.50
$39.50

Hydronix CB-45-2005 Whole House, Hydroponics, Commercial Carbon Block Water Filter – 4.5" x 20", 5 Micron Superior Water Filtration for Residential...

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$39.50 - $39.50
$39.50
$39.50 - $39.50
$39.50
Polaris Scientific GL32SE4P UV Ultraviolet Replacement Lamp, 32W For UV-8C UV Systems - IFilters
Polaris Scientific GL32SE4P – 32W UV Germicidal Replacement Lamp for UV-8C Systems
Polaris Scientific

Polaris Scientific GL32SE4P UV Ultraviolet Replacement Lamp, 32W For UV-8C UV Systems

GL32SE4P
in stock

$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

Polaris Scientific GL32SE4P – 32W UV Germicidal Replacement Lamp for UV-8C Systems The Polaris Scientific GL32SE4P is a high-performance ultraviole...

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$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00
3/4 Inch NPT Male Plastic Nipple Hex Connector With O-rings
Hydronix

1 Inch NPT Male Plastic Nipple Hex Connector With O-rings

NP-10
in stock

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

1" 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
Auto Ship
Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 20 - IFilters
Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 20 - IFilters
Hydronix

Coconut Shell CTO, Carbon Block Water Filter Cartridge, 0.5 Micron 2.5 x 20

SMCB-2520
in stock

$23.74 - $23.74
$23.74
$23.74 - $23.74
$23.74

Hydronix SMCB-2520 carbon block filters are NSF/ANSI standard 42 certified for Material and structural Safety. SMCB-2520 filters have a particle re...

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$23.74 - $23.74
$23.74
$23.74 - $23.74
$23.74
5/16 x 1.25 Stainless Steel Lag Screws and Washers, 4 Pack - IFilters
PRO+AQUA

5/16 x 1.25 Stainless Steel Lag Screws and Washers, 4 Pack

P-SSLAG114-4PK
in stock

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

Stainless steel lag bolts and washer set. Used with 10" or 20" Big Blue or similar filter housings that use 4.5" diameter filters. Each housing req...

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$3.00 - $3.00
$3.00
$3.00 - $3.00
$3.00
Auto Ship
CB5-4510 Whole House Carbon Block Water Filter, 5 Micron 4.5"x10" - IFilters
iFilters

CB5-4510 Whole House Carbon Block Water Filter, 5 Micron 4.5"x10"

CB5-4510
in stock

$29.49 - $29.49
$29.49
$29.49 - $29.49
$29.49

The CB5-4510 carbon block whole house filters is have a particle retention Size of 5 microns. Suitable for Drinking water filtration applications a...

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$29.49 - $29.49
$29.49
$29.49 - $29.49
$29.49
Hydrofit NSF 3/8 Tube x 1/4 MPT Male Connector Adapter - IFilters
Hydrofit

Hydrofit NSF 3/8 Tube x 1/4 MPT Male Connector Adapter

HDF-MC0604
in stock

$0.00 - $0.00
$0.00
$1.42
$1.42 - $1.42
$1.42

The Hydrofit NSF 3/8" Tube x 1/4" NPT Male Connector Adapter is NSF approved and are designed for ease of use. Hydrofit Quick Connect Fittings are ...

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$0.00 - $0.00
$0.00
$1.42
$1.42 - $1.42
$1.42
Auto Ship
Whole House Hydroponics Commercial Sediment Water Filter 10", 1 μm
Hydronix

Whole House Hydroponics Commercial Sediment Water Filter 10", 1 μm

SDC-45-1001
in stock

$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00

Hydronix SDC-45-1001 polypropylene sediment filters have a particle retention Size of 1 Micron and is used in a residential and commercial water fi...

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$12.00 - $12.00
$12.00
$12.00 - $12.00
$12.00
Auto Ship
6 PK - R30-BB RS6 FXHSC Compatible Sediment Pleated Water Filter Washable 30 μm
Hydronix

6 PK - R30-BB RS6 FXHSC Compatible Sediment Pleated Water Filter Washable 30 μm

SPC-45-1030/6
in stock

$69.98 - $69.98
$69.98
$69.98 - $69.98
$69.98

Hydronix SPC-45-1030 is the alternatve compatable to the R30-BB and the RSA pleated filters. The SPC-45-1030 4.5" x 10" 30 micron polyester pleated...

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$69.98 - $69.98
$69.98
$69.98 - $69.98
$69.98
Hydronix FM-45-3STND Triple Housing Stand Bracket – Whole House & Hydroponics Filtration Systems
Hydronix

Hydronix FM-45-3STND Triple Housing Stand Bracket For Whole House or Hydroponics Filtration Systems

FM-45-3STND
in stock

$129.95 - $129.95
$129.95
$129.95 - $129.95
$129.95

Hydronix FM-45-3STND Triple Housing Stand Bracket – Whole House & Hydroponics Filtration Systems The Hydronix FM-45-3STND is a durable, powder-...

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$129.95 - $129.95
$129.95
$129.95 - $129.95
$129.95
PRO+AQUA BNDL-WEL ELITE Well Water Filtration and Softener Bundle, Iron, Odor, Hardness - IFilters
PRO+AQUA BNDL-WEL ELITE – Well Water Filtration & Softener Bundle
PRO+AQUA

PRO+AQUA BNDL-WEL ELITE Well Water Filtration and Softener Bundle, Iron, Odor, Hardness

BNDL-WEL
In stock

$2,078.63 - $2,078.63
$2,078.63
$2,078.63 - $2,078.63
$2,078.63

PRO+AQUA BNDL-WEL ELITE – Well Water Filtration & Softener Bundle Whole House Solution for Iron, Odor, and Hardness Removal The PRO+AQUA BNDL-W...

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$2,078.63 - $2,078.63
$2,078.63
$2,078.63 - $2,078.63
$2,078.63
Reverse Osmosis Membrane Housing For Standard membranes, 1/4" Quick Change Ports
Reverse Osmosis Membrane Housing For Standard membranes, 1/4" Quick Change Ports - IFilters
Hydronix

Reverse Osmosis Membrane Housing For Standard membranes, 1/4" Quick Change Ports

MH03-1812WH-QC
in stock

$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99

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

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$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99
Auto Ship
Shower Filter Replacement Cartridge, Dechlorinating & pH Balancing, 4 Stages - IFilters
iFilters

Shower Filter Replacement Cartridge, Dechlorinating & pH Balancing, 4 Stages

IF-SF-CR
in stock

$18.32 - $18.32
$18.32
$18.32 - $18.32
$18.32

This OEM iFilters replacement cartridge is used in the iFilters IF-SF-CH and IF-SF-WH shower filters as well as other similar shower filters. This ...

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$18.32 - $18.32
$18.32
$18.32 - $18.32
$18.32
Pro+Aqua 1" Stainless Steel Bypass Valve for Water Softener/Filtration Systems - IFilters
Pro+Aqua 1" Stainless Steel Bypass Valve for Water Softener/Filtration Systems - IFilters
PRO+AQUA

Pro+Aqua 1" Stainless Steel Bypass Valve for Water Softener/Filtration Systems

P-60041SS
in stock

$55.98 - $55.98
$55.98
$55.98 - $55.98
$55.98

1" Stainless Steel Bypass Valve for Pro+Aqua, Aquatrol, Fleck Control Heads 56 Series, 2510, 5600, 5600SXT, 9000, 9100

$55.98 - $55.98
$55.98
$55.98 - $55.98
$55.98
Hydro Guard HDG45-10BODY Replacement Housing - HDG-45 Drop-In RO Systems
Hydro Guard

Hydro Guard HDG45-10BODY Replacement Housing for Hydro Guard Drop In Style HDG45 RO System

HDG45-10BODY
in stock

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

Hydro Guard HDG45-10BODY Replacement Housing – OEM Drop-In Style for HDG-45 RO System Ensure the longevity and efficiency of your Hydro Guard HDG-4...

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$19.99 - $19.99
$19.99
$19.99 - $19.99
$19.99
Polaris Scientific UV Ultraviolet Replacement Lamp, 17W For UVA-4C UV Systems - IFilters
Polaris Scientific UV Ultraviolet Replacement Lamp, 17W For UVA-4C UV Systems - IFilters
Polaris Scientific

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

GL17PP
in stock

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

Polaris Scientific GL17PP Replacement Germicidal Lamp for the UVA-4C Ultraviolet UV System.

$23.36 - $23.36
$23.36
$23.36 - $23.36
$23.36
Hydronix HF45-10BLBK10PR Water Filter Housing NSF listed 10" - 1" Ports w/ PR - IFilters
Hydronix

Hydronix HF45-10BLBK10PR Water Filter Housing NSF listed 10" - 1" Ports w/ PR

HF45-10BLBK10PR
in stock

$40.19 - $40.19
$40.19
$40.19 - $40.19
$40.19

The Hydronix HF45-10BLBK10PR 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
HDF-FF06 3/8" Tube x 7/16" - 24 UNS Faucet Fitting - IFilters
Hydrofit

HDF-FF06 3/8" Tube x 7/16" - 24 UNS Faucet Fitting

HDF-FF06
in stock

$1.21 - $1.21
$1.21
$1.21 - $1.21
$1.21

HDF-FF06 3/8" Tube x 7/16" - 24 UNS Faucet Fitting

$1.21 - $1.21
$1.21
$1.21 - $1.21
$1.21
Auto Ship
(3 Pack) Hydronix CB-45-1001/3 Wholehouse Hydroponics Carbon Block Water Filter 1 Micron 4.5" x 10", 3 Pack - IFilters
(3 Pack) Hydronix CB-45-1001/3 – 1 Micron Whole House & Hydroponics Carbon Block Water Filters (4.5" x 10")
Hydronix

(3 Pack) Hydronix CB-45-1001/3 Wholehouse Hydroponics Carbon Block Water Filter 1 Micron 4.5" x 10", 3 Pack

CB-45-1001/3
in stock

$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00

(3 Pack) Hydronix CB-45-1001/3 – 1 Micron Whole House & Hydroponics Carbon Block Water Filters (4.5" x 10") The Hydronix CB-45-1001/3 is a 3-pa...

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$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
Water Filter Housing, House Commercial Hydroponics BB Size 10" Clear 1" Ports PR
Water Filter Housing, House Commercial Hydroponics BB Size 10" Clear 1" Ports PR
Hydronix

Water Filter Housing, House Commercial Hydroponics BB Size 10" Clear 1" Ports PR

HF45-10CLBK10PR
in stock

$62.79 - $62.79
$62.79
$62.79 - $62.79
$62.79

The Hydronix HF45-10CLBK10PR 10" Clear Filter Housing (with Pressure Relief Button) is an extra-wide housing that accommodates large 4.5" wide filt...

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$62.79 - $62.79
$62.79
$62.79 - $62.79
$62.79
Shower Filter Massaging Showerhead, Dechlorinating pH Balancing 4 Stage, Chrome
iFilters

Shower Filter Massaging Showerhead, Dechlorinating pH Balancing 4 Stage, Chrome

IF-SF-CH
in stock

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

Not just a Chlorine filter, the iFilters IF-SF-CH Dechlorinating Shower Filter reduces the harmful effects of chlorine, lead, mercury and other con...

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