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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
$27.99
$25.20
The iFilters KDF05-10 is a 2.5" x 10" KDF replacement filter with 0.5 lbs of KDF media. For use in many water filter systems, especially point of u...
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$27.99
$25.20
Sale
$19.50
$17.55
Hydronix PG25100B – 0-100 PSI Water Pressure Gauge, 2.5" Stainless Steel, 1/4" Port The Hydronix PG25100B is a high-quality, UV-resistant water pre...
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$19.50
$17.55
Sale
$36.00
$32.40
The PT04-YL-0500 Yellow Polyethylene tubing is manufactured from top quality, low density materials. The PT04-YL-0500 is ideal for a variety of use...
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$36.00
$32.40
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iFilters Smart Pack Water Filters - 10 micron Smart Pack Pleated Filter 2.5" X 9 3/4" - 4 Pack
iFilters Smart Pack Water Filters - 10 micron Smart Pack Pleated Filter 2.5" X 9 3/4" - 4 Pack
in stock
Sale
$28.99
$26.10
iFilters Smart Pack Water Filters - These 10-micron Polyester Pleated Cartridges are manufactured from durable polyester to provide you with a supe...
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$28.99
$26.10
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iFilters - Smart Pack Water Filters - 1 Micron Smart Pack Pleated Filter 2.5" X 9 3/4" - 4 Pack
iFilters - Smart Pack Water Filters - 1 Micron Smart Pack Pleated Filter 2.5" X 9 3/4" - 4 Pack
in stock
Sale
$34.99
$31.50
iFilters - Smart Pack Water Filters - These 1 Micron Polyester Pleated Cartridges are manufactured from durable polyester to provide you with a sup...
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$34.99
$31.50
Sale
$37.95
$34.16
Polaris Scientific GL14SE4P – 14W Ultraviolet (UV) Replacement Lamp for UV-2C Systems The Polaris Scientific GL14SE4P is a high-quality germicidal ...
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$37.95
$34.16
Sale
$1.54
$1.39
The Hydrofit HDF-PE0404 1/4" Stem x 1/4" Tube Plug In Elbow are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide a...
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$1.54
$1.39
Sale
$17.48
$15.74
Polaris Scientific GL10SE4P – 10W UV Ultraviolet Germicidal Replacement Lamp (4-Pin) for UV-1C System The Polaris Scientific GL10SE4P is a high-qua...
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$17.48
$15.74
Sale
$1,959.02
$1,763.12
HydroScientific MRH-720-2 SS304 Stainless Steel Multi-Round Filter Housing Heavy-Duty 7-Round 20" Filter Housing | 150 PSI | 2" FNPT Ports | 84 GPM...
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$1,959.02
$1,763.12
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$499.99
$450.00
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$499.99
$450.00
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$26.90
$24.21
Polaris Scientific GL24PP Replacement Germicidal Lamp for the UVA-6C Ultraviolet UV System.
Sale
$26.90
$24.21
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$50.00
$45.00
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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$50.00
$45.00
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$60.00
$54.00
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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$60.00
$54.00
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$13.77
$12.40
The Hydronix MH03-1812WH Membrane Housings are manufactured with high-quality NSF approved material and will accommodate standard membrane elements...
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$13.77
$12.40
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$23.99
$21.60
The HF4-10WHWH38 is a 10" White Body housing with a White Flat Cap and 3/8" port. This housings has Double O-Rings. Uses any brand of standard 2.5”...
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$23.99
$21.60
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$18.75
$16.88
The Hydronix SWC-45-1050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...
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$18.75
$16.88
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$15.99
$14.40
Hydronix SPC series 4.5" x 10" 10 micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleate...
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$15.99
$14.40
Sale
$12.00
$10.80
Hydronix SDC-45-1020 polypropylene sediment filters have a particle retention size of 20 micron and is used in a residential and comercial water fi...
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$12.00
$10.80
Sale
$19.20
$17.28
Hydronix SDC-25-4005 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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$19.20
$17.28
Sale
$19.78
$17.81
The Hydronix LF-BLRAG long reach air gap faucet is a chrome plated faucet that can be used in reverse Osmosis and Drinking water systems. The LF-BL...
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$19.78
$17.81
Sale
$49.95
$44.96
Polaris Scientific QS48HO – Replacement Quartz Sleeve for UVA-418HO UV System The Polaris Scientific QS48HO is an OEM quartz sleeve designed for th...
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$49.95
$44.96
PRO+AQUA PRO-RO-IV 4000 GPD Commercial Reverse Osmosis System, Hydroponics, Breweries, Coffee, Teas
In stock
Sale
$4,459.95
$4,013.96
PRO+AQUA PRO-RO-IV 4000 GPD Commercial Reverse Osmosis System – Ultra-Pure RO Water for Hydroponics, Breweries & More The PRO+AQUA PRO-RO-IV 40...
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$4,459.95
$4,013.96
Sale
$6.40
$5.76
1/4" Drain Saddle for use with Reverse Osmosis systems. Compatible with all standard RO systems using 1/4" tubing including US Water RO Systems, US...
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$6.40
$5.76
Sale
$70.50
$63.45
The PT08-BK-0250 Black Polyethylene tubing is manufactured from top quality, low density materials. The PT08-BK-0250 is ideal for a variety of uses...
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$70.50
$63.45
