Top 10 GAC KDF Filter – Replacement Water Filters

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1. iFilters

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IFilters KDF and GAC Well or City Water Whole House Filtration 4.5" x 10"

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iFilters #ad - Made from Certified approved materials. Size 4. 5" x 10". Removal of organic compounds including VOCs, chlorine, radon, bad taste and odor. Gac and 1 lb of KDF. Excellent for Well Water and City Water Filtration.
BrandiFilters #ad
ManufactureriFilters #ad
Height10 Inches
Length4.5 Inches
Weight3 Pounds
Width4.5 Inches
Part NumberFBA-KDF1-4510

2. Premier Water Systems

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Iron Removal | 2.5" x 10" Standard Size Cartridge, Premier KDF 55 + Coconut Shell Carbon Filter Cartridge | Heavy Metal

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Premier Water Systems #ad - Great for municipal or well water. It will still function as described. Effectively removes chlorine and heavy metals. Fits standard 10" housing for reverse osmosis Water Filtration Applications. Kdf process media to safely reduce or remove chlorine, iron, heavy metals. This is normal and it will not affect the working of the filter. Clear filter Cartridge: 2. 5" x 10". Sometimes during shipping, the media may shift. Significantly extend the life of the GAC.
BrandPremier Water Systems #ad
ManufacturerOceanic Water Systems #ad
Height10 Inches
Length2.5 Inches
Width2.5 Inches
Model2510K55G

3. iSpring

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ISpring FG25B-KS High Capacity Heavy Metal Reducing GAC and KDF Whole House Water Filter Replacement Cartridge, 4.5” x 20”

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iSpring #ad - Our knowledgeable team is available to help you find a filtration solution that best solves your specific water concerns or to help with any after-sale support you may need. Built to last your filter changing schedule will be based on the contaminantion level of your source water. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis RO systems.

Please note unlike an ro membrane, this filter does not reduce total dissolved Solids TDS. Please unwrap the cartridges before installation. Our goal is, and always will be, to maximize your user experience. Protect your family and household appliance from chlorine, heavy metal, hydrogen sulfide, and Other Harmful Chemicals FG25B-KS 20” x 4.5” compound filter is designed to remove chlorine, lead, pesticides, odors, mercury, heavy metals, herbicides, and other contaminants. Standard size our filter set fits any standard whole house water filter housings that require 20” x 4.

5” cartridges. Instead this filter keeps healthy minerals in your water while removing harmful chemicals. Each cartridge is individually wrapped to ensure that the filter stays fresh. We recommend changing your filters every 10-12 months or when you’ve filtered up to 150K gallons of water. Our filter cartridges are hassle-free and replacement is a breeze! Peace-of-mind customer service we offer both technical assistance and customer service support by phone or email out of our headquarters in Atlanta, GA.
BrandiSpring #ad
ManufactureriSpring Water Systems #ad
Height20 Inches
Length4.5 Inches
Weight6.31 Pounds
Width4.5 Inches
Part NumberFG25B-KS
ModelFG25B-KS

4. Pentek

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Pentair Pentek UDS-10EX1 Carbon Water Filter, Under Sink Standard Granular Activated Coconut Shell Carbon Cartridge with KDF 55 Media, 5 Micron, 10" x 2.5", 10-Inch

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Pentek #ad - Effective solution for chlorine taste and odor reduction in high capacity situations and where lime and scale buildup problems occur. Fits all 10" standard housings and can replace any 10" x 2. 5" standard carbon cartridge. Constructed of high performance granular activated coconut shell carbon and a 5-micron spun bonded polypropylene post sediment element for increased dirt holding capacity. Ideally suited for reverse osmosis, distillation, bottle-less cooler and other water dispensing appliances. Enhanced with kdf media to inhibit scale build-up that can damage equipment.
BrandPentek #ad
ManufacturerPentair Industries #ad
Height10 Inches
Length2.5 Inches
Weight1.65 Pounds
Width2.5 Inches
Part Number255800-43
Model25580043

5. Oceanic Water Systems

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Manganese, 4.5" x 10" Whole House Refillable Water Filter Cartridge, Compatible with 10" Big blue Housing, Rotten Egg Smell, GAC Catalytic Carbon + Birm + KDF 85: Removes Iron, Hydrogen Sulfide

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Oceanic Water Systems #ad - Whole house water filter with Mixture of Activated Catalytic Carbon, Birm and KDF 85. Kdf process media to safely reduce or remove iron, hydrogen sulfide, sulfur, manganese and more from the water supply. Superior taste and odor removal capabilities. Save money with this refillable filter. Highest grade filtration media available. This filter can be used for most standard blue 10" housings 4. 5" x 10". Very effective at removing h2s smell from Well Water Depends on Local water quality, chemistry, and conditions which vary dramatically from location to location.
BrandOceanic Water Systems #ad
ManufacturerOceanic Water Systems #ad
Height10 Inches
Length4.5 Inches
Weight8.75 Pounds
Width4.5 Inches

6. Oceanic Water Systems

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Manganese, 4.5" x 20" Whole House Refillable Water Filter Cartridge, Compatible with 20" Big Blue Housing, Hydrogen Sulfide, GAC Catalytic Carbon/Birm + KDF 85: Removes Iron, Rotten Egg Smell

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Oceanic Water Systems #ad - Save money with this refillable inline filter. Filter should be flushed initially for at least 20 minutes until water runs clear. Superior taste and odor removal capabilities Dependent on local water quality. Whole house water filter with Mixture of Activated Catalytic Carbon, Birm and KDF 85. Kdf process media to safely reduce or remove iron, sulfur, hydrogen sulfide, manganese and more from the water supply. Fits most standard big 20" housings 4. 5" x 20". Highest grade filtration media available.
BrandOceanic Water Systems #ad
ManufacturerOceanic Water Systems #ad
Height20 Inches
Length4.5 Inches
Weight8.75 Pounds
Width4.5 Inches

7. PREMIER

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Replacement Water Filter Cartridge KDF 55/85 + GAC | 4.5" x 10" KDF 85 Compatible with Big Blue Housing

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PREMIER #ad - Perfect and effective at iron, Hydrogen sulfide, Sulfur, Rotten Egg Smell Reduction in water. Filter size 4. 5" x 10" water filters. Filters fit into and compatible with 4. 5 x 10" big blue Whole House Canisters. Kdf 85: reduces taste and odor, Iron, water-soluble heavy metals, scale, Hydrogen Sulfide smell in drinking water. Kdf 55: high-purity copper-zinc redox media specializes in the removal of inorganic material, heave metals and 99% of free chlorine. Each filter is filled with Granular Activated Coconut Shell Carbon and 1 lb of KDF.
BrandPREMIER #ad
ManufacturerPremier Water Systems #ad

8. Watts

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Water Filter Cartridge KDF GAC For Undercounter Units Standard Housings, Super Quality Long Lasting!

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Watts #ad - Coconut shell based carbon tastes better. Fits standard sized housings. Kdf media dramatically increases the life of the filter.
BrandWatts #ad
ManufacturerABC WATER #ad
Part NumberIB-XNGR-RZSC
ModelCOMINHKR001654

9. iSpring

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1 Count Pack of 1, 10"x 4.5", iSpring FG15B-KS Premium Quality GAC and KDF Carbon Filter Replacement Cartridge for Direct Connect Under Sink Water Filtration System US21B

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iSpring #ad - A reliable shield that protects you and your family from ingesting harmful chemicals or contaminants in your tap water. Individually sealed for freshness. Capacity: 80000 gallons. Contact our responsive and professional team for product selection to suit your water filtration needs and after-sale support to maximize your user experience.

Water health warrior teaming up with carbon filters like ispring fc15b, bad taste, cloudiness, colors, this filter is super powerful to remove the unpleasant taste or odor left in chlorinated water while maintaining the protection benefits of chlorine in water disinfection. Great compatibility official 1st stage replacement filter cartridge for iSpring direct connect Point-of-UsePOU undersink water filtration system US21B. If you are interested in a filter that significantly reduces TDS, please consider our iSpring Reverse Osmosis RO systems RCC7 series or tankless RO500 Peace-of-mind support we offer tech and cs support via phone and email from Atlanta, GA.

Fits standard 10" undercounter or whole house water filtration systems. Now, and years to come, we will be right here and ready to help. They also tackle problems like turbidity, and odors like hydrogen sulfide that smells like rotten eggs. Superb filtration performance fg15b-ks 10” x 4. 5” compound filter is designed to effectively remove chlorine, iron, herbicides, lead, chloride, hydrogen sulfide, mercury, THMs, nitrate, odors, chloramines, and other contaminants or impurities.
BrandiSpring #ad
ManufactureriSpring #ad
Height10 Inches
Length4.5 Inches
Width4.5 Inches
Part NumberFG15B-KS
ModelFG15B-KS
WarrantyWarranty and Support: By default every iSpring replacement filter comes with thirty-day money back policy and one-year limited manufacturer warranty. We care and love to help customers. Besides DIY videos on YouTube and Knowledge Base on our website, we provide direct customer service from Atlanta, GA. Please don't hesitate to reach out to us before and after your purchase. Your satisfaction is our business!

10. Oceanic Water Systems

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2 Pack: Whole House Filter Cartridges 4.5" x 10" | Sediment & GAC/KDF 85 Well Water Filters: Reduces Iron/Sulfur/Rotten Egg Smell, Compatible with 10" Big Blue Housing

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Oceanic Water Systems #ad - The kdf-85 effectively reduces dissolved iron and hydrogen sulfide odor over a wider pH range than possible with standard oxidation filters such as manganese greensand, thereby protecting your plumbing system including toilets, and appliances such as clothes washers and dishwashers, bath tubs and showers, from unsightly staining and odor.

The high capacity polypropylene sediment filter – Extracts suspended materials such as sediment, rust, and other particles down to 5 microns. For well water - iron and hydrogen sulfide reducing filter contains a combination of kdf 85 media and organic coconut shell activated carbon. This cartridge also extends life of other, insects, more expensive cartridges and prevents damage. 2 whole house big blue compatible water filters: 1 sediment and 1 activated coconut Shell Carbon + KDF 85 media REFILLABLE FILTER CARTRIDGE - GAC/KDF85.

Kdf 85 process media removes 99% of water-soluble lead, mercury, chromium, and other dissolved metals. Will fit standard 10" big blue filter housing. 2 filters: 1 sediment filter and 1 gac/KDF85 Filter - both are 4. 5" x 10". Filter sized: 4. 5" x 10" inch. Nsf certified, acid washed, nickel, high performance Organic coconut shell and activated carbon beds.
BrandOceanic Water Systems #ad
ManufacturerOceanic Water Systems #ad
Height10 Inches
Length4.5 Inches
Weight5 Pounds
Width4.5 Inches