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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!
Sale
$44.00
$39.60
The iFilters LWHSD Whole House Water Filter reduces dirt, sand, silt, rust, and scale particles and has a flow rate of Up to 8 gallons per minute (...
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$44.00
$39.60
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$45.50
$40.95
Polaris Scientific GL39SE4P Replacement Germicidal Lamp for the UV-12C, UV-24B, UV-36B, UV-50B, UV-60B, UV-80B and UV-100B Ultraviolet UV System.
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$45.50
$40.95
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$7.72
$6.95
The Hydronix SDC-25-1001 polypropylene sediment filter is a 1 Micron rated filter. It's a universal standard size fits any standard Reverse Osmosis...
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$7.72
$6.95
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$4.99
$4.50
The FW-4 Wrench can be use to loosen standard 2x12 membrane housings when changing membranes. This FW-4 wrench fits many Hydronix, Pentek, Culligan...
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$4.99
$4.50
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$43.99
$39.60
4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard 4 Stage RO system. Sediment, CTO Carbon Block, M...
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$43.99
$39.60
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$35.99
$32.40
Polaris Scientific QS39 Replacement Quartz Sleeve for the UVA-12C, UVA-24B, UVA-36B, UVA-50B, UVA-60B, UVA-80B, UVA-100B, UVA-150B and UVA-200B Ult...
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$35.99
$32.40
Sale
$199.00
$179.10
Polaris UVA-4C Whole House UV Ultraviolet Deactivator System 4 GPM with 9000 Hour Bulb. This Polaris UV system Meets Food, Medical and Lab Requirem...
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$199.00
$179.10
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$200.00
$180.00
The iFilters U200UV was designed and assembled in California from NSF approved components and offers superior filtration at a lower cost compared t...
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$200.00
$180.00
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$27.94
$25.15
The Hydronix SPC-45-2001 4.5" x 20" 1 Micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pl...
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$27.94
$25.15
Sale
$113.70
$102.33
6 Pack - Hydronix SDC-45-2005 polypropylene sediment filters have a particle retention size of 5 microns and are used in residential and commercial...
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$113.70
$102.33
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$38.22
$34.40
Hydronix LF-EC25-BN Ceramic Faucet is a brushed nickel faucet that can be used in reverse osmosis and drinking water systems. The LF-EC25-BN faucet...
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$38.22
$34.40
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$1.42
$1.28
Upgrade your water system with confidence using the Hydrofit 1/4" Tube x 1/4" NPTF fitting. Engineered for reliability and ease of installation, th...
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$1.42
$1.28
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$5.53
$4.98
Hydronix SWC-25-1010 polypropylene String wound filters have a particle retention Size of 10 micron and are used in a residential and commercial wa...
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$5.53
$4.98
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$39.99
$36.00
The CB5-4520 carbon block whole house filters have a particle retention Size of 5 microns. Perfect for Drinking water filtration as well as Whole H...
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$39.99
$36.00
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$15.50
$13.95
The TDS-EZ is a water quality tester used to test the amount of Total Dissolved Solids (TDS) in the water. This is an essential tool if you wish to...
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$15.50
$13.95
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$24.99
$22.50
The Smart Pack Pre & Post Carbon Block RO Replacement Set is built to keep your reverse osmosis system doing what it does best: providing clean...
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$24.99
$22.50
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$54.50
$49.05
1 - 2 Year (14 filters) supply of RO Reverse Osmosis Filters. All filters are Premium NSF Certified Hydronix. This universal set s compatible with ...
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$54.50
$49.05
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$2.72
$2.45
Polaris Scientific UV-WASHER – Replacement White Washer for Polaris UV Systems The Polaris Scientific UV-WASHER is a genuine OEM replacement washer...
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$2.72
$2.45
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$15.00
$13.50
The Hydronix SPV-40CLMPKIT Clamp Set is used with 4 inch Hydronix RO Stainless Steel SPV Membrane Vessels.
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$15.00
$13.50
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$50.00
$45.00
Hydronix LF-EC32-BN ceramic faucet is a brushed nickel faucet that can be used in reverse Osmosis and Drinking water systems. The LF-EC32-BN faucet...
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$50.00
$45.00
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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
in stock
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$39.50
$35.55
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
$35.55
Sale
$89.99
$81.00
KDF85-20B 4.5" x 20" Coconut GAC + KDF85 Big Blue size cartridge. For Well Water or City Whole House filtration as well as Commercial use. This fil...
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$89.99
$81.00
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$4.81
$4.33
The FW-2 wrench fits the HF5 Series Hydronix Housings
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$4.81
$4.33
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$25.00
$22.50
The Hydronix SPC-45-2020 4.5" x 20" 20 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior p...
View full detailsSale
$25.00
$22.50
