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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 $36.99 - Original price $36.99
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Hydro Guard HDG-CB6-38 Carbon Block Water Filter – 0.5 Micron, 3/8" NPT Port The Hydro Guard HDG-CB6-38 Carbon Block Water Filter delivers premium ...

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Original price $36.99 - Original price $36.99
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Original price $714.16 - Original price $800.00
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iFilters XWH-1000 Whole House Water Filtration System – 1,000,000 Gallon Capacity with Pre-Filter & GAC/KDF (SP30-4510)

Original price $714.16 - Original price $800.00
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Original price $42.95 - Original price $42.95
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Hydronix 4 Pack 20 Micron Whole House Hydronix SPC-45-1020 Pleated Sediment Water Filters - Washable & Reusable. Compatible with any standard h...

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Original price $75.00 - Original price $75.00
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2 Pack Hydronix CB-45-2005 (Pentek EP-20BB, Watts WCBCFF20 Comparable) Coconut Shell Carbon Block water filter cartridge measures 4.5" x 20" standa...

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Original price $52.49 - Original price $52.49
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The Hydronix HF45-20BLBK10PR 20" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing...

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Original price $45.40 - Original price $45.40
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This Hydronix SDP-4510 Sediment Dual Purpose Radial Flow GAC Carbon Filter is best filter in the market for Dual Purpose Filtration and is comparab...

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Original price $109.99 - Original price $109.99
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2 Pack iFilters RP-3500 is a 100% compatible alternative replacement to the WF0451 filter used in the RP 5300 water filtration systems. Made from c...

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Original price $109.99 - Original price $109.99
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Original price $99.99 - Original price $99.99
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The iFilters LWH-D Gen2 Dual Stage Whole House Water Filter System (Light Whole House Series) has been updated with better filters and added flow f...

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Original price $39.00 - Original price $39.00
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5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For any standard 5 Stage RO system. Sediment, GAC, CTO Carbon Blo...

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NSF Certified 4.5 Gallon (3.2 Draw-down) Reverse Osmosis Water Storage Tank. Lead, brass and copper are banned for use in purified/drinking water. ...

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Hydronix PFM-055 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 $88.99 - Original price $88.99
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Polaris UVA-1C Whole House UV Ultraviolet Water De-Activating System 1 GPM with 9000 Hour Bulb.

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Original price $25.98 - Original price $25.98
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Hydronix SDC-25-2005 polypropylene sediment filters have a particle retention Size of 5 micron and is used in a residential and commercial water fi...

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KDF85-10 2.5" x 10" Coconut GAC + KDF85 standard size filter cartridge. For Well Water or City Whole House filtration as well as Commercial use. T...

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Original price $97.95 - Original price $97.95
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The iFilters U200 is designed in California from NSF-approved components and offers superior filtration at a lower cost compared to the leading com...

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The IFD-U3PK-UV is the correct OEM replacement set for the iFilters U300UV Under-sink Drinking Water Filtration Systems. The IFD-U3PK-UV combines S...

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Original price $109.99 - Original price $109.99
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KDF2-4520 4.5" x 20" Coconut GAC + 2LBS KDF size cartridge. For City or Well Water Whole House or Commercial use. This filter is made from coconut ...

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iFilters has combined top quality components to create the best RO DI booster pump in the market. The BP100KIT includes all the components needed t...

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The Hydronix UDF-10 granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction needs....

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Pro+Aqua Control Valve Head Quick Connect Drain Elbow 1/2" for Softener and Filtration System

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Polaris Scientific UV-SEAL – Replacement Quartz Sleeve O-Ring Seal for All Polaris UV Units The Polaris UV-SEAL is an OEM replacement O-ring seal d...

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Original price $49.99 - Original price $49.99
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Hydronix SDP-4520 Sediment Dual Purpose Radial Flow Carbon Filter is compatible with RFC-20BB filters. It provides a unique design combining all th...

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Original price $109.95 - Original price $109.95
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Polaris Scientific GLHO48PP – High Output Ultraviolet Replacement Lamp for UVA-418HO The Polaris Scientific GLHO48PP is a high-output germicidal UV...

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Original price $109.95 - Original price $109.95
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Original price $89.99 - Original price $89.99
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Pro+Aqua Electronic Turbine Flow Meter Complete Kit Fits Fleck 2510, 5600, SE/SXT Water Softener/Filter Control Valves

Original price $89.99 - Original price $89.99
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