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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 $23.84 - Original price $23.84
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This Smart Pack IF4-HDG-SED-AC5 contains 4 (stage 1) 100% high purity polypropylene filters (1 year supply). The IF4-HDG-SED-AC5 high purity polypr...

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Original price $23.84 - Original price $23.84
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Original price $10.50 - Original price $10.50
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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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Original price $43.66 - Original price $43.66
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The Hydronix UDF-10KDF2 is a 2.5" x 10" KDF replacement with 2 lbs of KDF media. For use in many water filter systems, especially whole house filte...

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Original price $43.66 - Original price $43.66
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Original price $27.48 - Original price $27.48
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Current price $27.48

The Hydronix UDF-10KDF1 is a 2.5" x 10" KDF replacement with 1 lbs of KDF media. For use in many water filter systems, especially whole house filte...

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Original price $27.48 - Original price $27.48
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Original price $28.00 - Original price $28.00
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The Hydronix SWC-45-2050 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 $28.00 - Original price $28.00
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Original price $17.95 - Original price $17.95
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The Hydronix SWC-45-1010 polypropylene String wound filters have a particle retention Size of 10 micron and are used in a residential and commercia...

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Original price $17.95 - Original price $17.95
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Original price $7.00 - Original price $7.00
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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 $7.00 - Original price $7.00
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Original price $7.00 - Original price $7.00
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Hydronix SWC-25-1020 polypropylene String wound filters have a particle retention Size of 20 micron and are used in a residential and commercial wa...

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Original price $23.75 - Original price $23.75
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The Hydronix SPC-45-2030 4.5" x 20" 30 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior p...

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Original price $23.75 - Original price $23.75
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Original price $11.52 - Original price $11.52
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Hydronix SPC series 2.5" x 20" 20 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleate...

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Original price $11.52 - Original price $11.52
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Original price $8.88 - Original price $8.88
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The Hydronix SDC-25-1050 polypropylene sediment filter is a 50 micron rated filter. Its universal standard size fits any standard Reverse Osmosis, ...

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Original price $8.88 - Original price $8.88
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Original price $7.99 - Original price $7.99
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The Hydronix SDC-25-0501 polypropylene sediment filter has a particle retention size of 1 Micron and is used in a small water filtration systems. T...

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Original price $7.99 - Original price $7.99
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Original price $20.83 - Original price $20.83
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Hydro Guard HDG-P117/2 Universal GAC Water Filter Cartridge – AP117 Compatible (2-Pack) Upgrade your water filtration system with the Hydro Guard H...

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Original price $20.83 - Original price $20.83
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Original price $69.95 - Original price $69.95
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Current price $69.95

Ensure your water filtration system continues to deliver exceptional performance with the FC-19-ACB replacement filter. Engineered with Activated C...

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Original price $69.95 - Original price $69.95
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Original price $0.00 - Original price $0.00
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$74.99
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Pro+Aqua Complete Reverse Osmosis Yearly Replacement Filter Set. Includes 1 sediment filter (Stage 1), 2 triple capacity carbon block filters (Stag...

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$74.99
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Original price $149.99 - Original price $149.99
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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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Original price $149.99 - Original price $149.99
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Original price $12.25 - Original price $12.25
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Hydronix ISF-10Q inline sediment filters have 1/4" QC connections and are suitable for Drinking water filtration applications. The internal polypro...

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Original price $2.50 - Original price $2.50
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The HDF-UC0604 is used to increase or reduce 3/8" hoses to 1/4" hoses. This fitting features Quick Connect ports for an easy push in installation.

Original price $2.50 - Original price $2.50
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Original price $53.00 - Original price $53.00
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Hydronix PFM-216 Flowmeter has easy to read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piece Injection Mol...

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Original price $53.00 - Original price $53.00
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Original price $17.99 - Original price $17.99
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Aquatrol P-18706-02 3/4" Yoke – Fiber-Reinforced Polymer Replacement for AQT-56 & Fleck Control Valves The Aquatrol P-18706-02 3/4" Yoke is a d...

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Original price $17.99 - Original price $17.99
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Original price $69.95 - Original price $69.95
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The Hydronix IFM-220 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piece ...

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Original price $69.95 - Original price $69.95
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Original price $284.50 - Original price $284.50
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The Hydronix IFM-2060 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. The IFM-2060 ha...

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Original price $284.50 - Original price $284.50
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Original price $1.00 - Original price $1.00
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Current price $1.00

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

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Original price $1.00 - Original price $1.00
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Original price $131.65 - Original price $131.65
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Hydronix AFM Series Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piece Injectio...

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Original price $131.65 - Original price $131.65
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Current price $131.65
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