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GAC & KDF
GAC & KDF filter cartridges are designed to improve water quality by combining granular activated carbon with powerful KDF media. This filtration blend helps reduce chlorine, unpleasant taste, and common odors while targeting heavy metals such as iron and lead. Many homeowners rely on these cartridges for both city and well water systems. Replacement options are available in multiple sizes to fit standard whole-house and undersink housings. Consistent filter changes help maintain strong flow and reliable contaminant reduction.
About Our GAC & KDF Replacement Filter Products
Our selection includes a wide range of replacement GAC & KDF filter cartridges compatible with popular whole-house and drinking water systems. Sizes such as 2.5 x 10-inch and 4.5 x 20-inch cartridges make it easy to match existing housings. Options are available for sediment pre-filtration, carbon block stages, and KDF enhanced blends for scale control and heavy metal reduction. Several models are designed specifically for well water treatment, where iron and hydrogen sulfide are common concerns. Auto Ship choices simplify routine maintenance and help you stay on schedule without the hassle of reordering.
Why Choose iFilters for GAC & KDF Filter Products?
iFilters offers trusted replacement cartridges that meet the needs of residential and light commercial systems. Each product listing includes clear specifications so you can confirm size, micron rating, and compatibility before purchasing. Competitive pricing and strong customer ratings reflect dependable performance across many water conditions. Fast shipping and convenient Auto Ship programs make ongoing filter replacement simple. A broad inventory allows you to find the right cartridge without searching across multiple stores.
Shop GAC & KDF filter products online today!
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Hydronix UDF-10BP Coconut Shell GAC Water Filter for Whole House Commercial or Industrial 4.5" x 10"
Hydronix UDF-10BP Coconut Shell GAC Water Filter for Whole House Commercial or Industrial 4.5" x 10"
in stock
Sale
$22.00
$19.80
The Hydronix UDF-10BP granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction need...
View full detailsSale
$22.00
$19.80
Sale
$27.48
$24.74
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...
View full detailsSale
$27.48
$24.74
Sale
$12.08
$10.88
Hydro Guard HDG-P117 Universal GAC Water Filter Cartridge – Compatible with AP117 The Hydro Guard HDG-P117 Granular Activated Carbon (GAC) Water Fi...
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$12.08
$10.88
Sale
$255.00
$229.50
This 4.5" x 20" Alkaline cartridge is used to increase pH and neutralize the acidity of low-mineral water. This alkaline filter will improve the ov...
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$255.00
$229.50
Sale
$19.82
$17.84
The Hydronix UDF-20 granular activated carbon (GAC) cartridges are the best choice for your higher flow, taste, odder and chlorine reduction needs....
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$19.82
$17.84
Sale
$43.50
$39.15
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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$43.50
$39.15
