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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!

Original price $123.30 - Original price $123.30
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Current price $123.30

The 4FC cartridge utilizes Fibredyne II media alongside AgION to improve the taste of you drinking water by reducing the taste and odor of chlorine...

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Original price $123.30 - Original price $123.30
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Current price $123.30
Original price $43.50 - Original price $43.50
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$43.50
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Current price $43.50

The Everpure Costguard CGT-20S EV910833 Water Filter Cartridge features granular activated carbon, which reduces chlorine, bad taste and odor from ...

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Original price $43.50 - Original price $43.50
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Original price $275.00 - Original price $275.00
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$275.00
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Current price $275.00

This 80 pack of Hydronix SDC-25-1005 polypropylene sediment filter is a 5 micron rated filter. Its universal standard size fits any standard Revers...

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Original price $275.00 - Original price $275.00
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Current price $275.00
Original price $179.00 - Original price $179.00
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$179.00
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Current price $179.00

The Hydronix SDC-25-1001 polypropylene sediment filter is a 1 Micron rated filter. Its universal standard size fits any standard Reverse Osmosis, W...

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Original price $179.00 - Original price $179.00
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Current price $179.00
Original price $28.00 - Original price $28.00
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Current price $28.00

Upgrade your water system with the iFilters Dual Purpose Radial Flow Cartridge (RFC-93 Comparable), designed to deliver both sediment filtration an...

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Original price $28.00 - Original price $28.00
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Original price $46.00 - Original price $46.00
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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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Original price $46.00 - Original price $46.00
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Original price $40.42 - Original price $40.42
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Current price $40.42

The Hydronix HF45-10BLBK15 filter housing accepts 10 x 4.5-inch filters and is ideal for use in residential, commercial, and light industrial appli...

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Original price $40.42 - Original price $40.42
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Original price $16.34 - Original price $16.34
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Current price $16.34

Hydronix HF3 Series Slim Rib Cap Filter Housings are available in a variety of colors and are made to house 2.5" diameter cartridges. Most 2.5" x 5...

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Original price $16.34 - Original price $16.34
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Original price $10.50 - Original price $10.50
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Current price $10.50

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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Original price $10.50 - Original price $10.50
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Current price $10.50
Original price $9.50 - Original price $9.50
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$9.50
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Current price $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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Original price $9.50 - Original price $9.50
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Current price $9.50
Original price $17.57 - Original price $17.57
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The Hydronix SWC-45-10100 polypropylene String wound filters have a particle retention Size of 100 micron and are used in a residential and commerc...

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Original price $17.57 - Original price $17.57
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Original price $22.82 - Original price $22.82
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The Hydronix SWC-25-40100 polypropylene String wound filters have a particle retention Size of 100 micron and are used in a residential and commerc...

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Original price $22.82 - Original price $22.82
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Original price $15.00 - Original price $15.00
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Current price $15.00

The Hydronix SWC-25-1050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...

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Original price $15.00 - Original price $15.00
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Original price $12.99 - Original price $12.99
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Current price $12.99

Hydronix SPC series 2.5" x 20" 10 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleate...

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Original price $12.99 - Original price $12.99
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Original price $19.52 - Original price $19.52
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Hydronix SPC series 2.5" x 20" 1 Micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleated...

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Original price $19.52 - Original price $19.52
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Original price $13.06 - Original price $13.06
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Hydronix SDC-25-3075 polypropylene sediment filters have a particle retention Size of 75 micron and is used in a residential and commercial water f...

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Original price $13.06 - Original price $13.06
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Original price $11.86 - Original price $11.86
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Hydronix SBC-25-2005 polypropylene sediment bonded depth filters have a particle retention Size of 5 micron and are used in a residential and comme...

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Original price $11.86 - Original price $11.86
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Original price $15.83 - Original price $15.83
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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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Original price $15.83 - Original price $15.83
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Original price $23.50 - Original price $23.50
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$23.50
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Current price $23.50

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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Original price $23.50 - Original price $23.50
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$23.50
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Current price $23.50
Original price $23.50 - Original price $23.50
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$23.50
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Current price $23.50

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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Original price $23.50 - Original price $23.50
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Current price $23.50
Original price $18.24 - Original price $18.24
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Current price $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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Original price $18.24 - Original price $18.24
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Original price $17.23 - Original price $17.23
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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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Original price $17.23 - Original price $17.23
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Current price $17.23
Original price $1.10 - Original price $1.10
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Current price $1.10

Hydrofit, 3/8" Stem x 1/4" Tube Adapter Hydrofit, 3/8" Stem x 1/4" Tube Adapter

Original price $1.10 - Original price $1.10
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Current price $1.10
Original price $66.25 - Original price $66.25
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Current price $66.25

The HydroScientifc™ Jumbo HSC-40-1 Pleated Polyester Filter Cartridges are high flow performance cartridges designed to meet or exceed operational ...

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Original price $66.25 - Original price $66.25
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Current price $66.25
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