Bone Char Carbon (Fluoride Filter)

What Is a Bone Char Carbon Filter?

Bone char is a specialty carbon media with a high surface area, used in targeted applications rather than as a universal replacement for RO or all-purpose carbon. The performance of a bone char filter depends on your water chemistry, flow rate, contact time, and the concentration of whatever contaminant you're targeting.

AFW's bone-char systems are designed for the reduction of fluoride, arsenic, chlorine, chloramine, lead, cadmium, mercury, iron, manganese, copper, zinc, aluminum, nickel, radionuclides, radioactive isotopes, fertilizers, uranium, radium, and pesticides and herbicides.

Shop Bone Char Filter Systems by Configuration

10-Inch and 20-Inch Bone Char Carbon Replacement Filters

The 10-inch Bone Char Carbon Filter and Big Blue 20-inch Bone Char Carbon Filter are replacement cartridges for fluoride, arsenic, radioactive-particle, and toxic-metal applications. These are replacement cartridges for a compatible housing, not complete whole-house systems on their own, so matching the cartridge dimensions to your existing housing matters.

Single-Canister Big Blue Bone Char Carbon Systems

The 20-inch Single Canister Big Blue Bone Char Carbon Whole House Filter is a complete point-of-entry configuration built around a single bone char fluoride filter cartridge. Confirm your household's flow needs and cartridge replacement schedule before installing.

Two-Stage Sediment and Bone Char Systems

The 2 Stage 20-Inch Whole House Filter with Sediment and Bone Char Carbon puts sediment filtration ahead of the bone char stage, which helps reduce loading from sand, rust, and suspended particles so the specialty media lasts longer.

Three-Stage Bone Char Whole-House Water Filters

AFW's live combinations include sediment + catalytic carbon/KDF85 + bone char. Multi-stage systems can address several water concerns at once, but each stage should be there because it targets a contaminant you've actually confirmed.

GreenFlo Upflow Bone Char Carbon Systems

The GreenFlo Bone Char Carbon 15 and GreenFlo Bone Char Carbon 25 use an upflow head, which eliminates the need for backwashing, wastewater, or gravel. Each is a complete bone char whole-house water filter, not a cartridge; confirm the exact media volume and flow specification before choosing between them.

Fleck-Controlled Bone Char Carbon Systems

The Digital Bone Char Carbon 15 System with Fleck 5600SXT is a standard-flow digital system for treatment of a wide range of chemicals, tastes, and odors, with automatic control valve programming for whole-house application.

How to Choose a Bone Char Fluoride Filter

Choosing the right bone char water filter starts with knowing what's actually in your water, not picking the system with the most stages.

• Test fluoride and other contaminants first: Depending on your water source, relevant tests include fluoride, arsenic, lead, chlorine or chloramine, TDS, pH, iron and manganese, sediment, and anything else specific to your source water.
• Choose a cartridge or tank system: Cartridge systems are easier to install and replace. Tank systems offer larger media volumes. Upflow systems may reduce wastewater and maintenance. Multi-stage systems provide broader treatment but need more space and more replacement parts over time.
• Match flow rate and contact time: Consider your household's peak flow, the cartridge's capacity, tank size, contact time, pressure drop, and how many fixtures might run at once. There's no single universal GPM rating that applies across every bone char carbon filter; check the specific product.

Bone Char Carbon Filter Maintenance

Replace cartridges according to your water use, contaminant load, and the product's own guidance rather than a generic schedule.

Monitor water taste, pressure, and test results over time. Replace sediment pre-filters once they're visibly clogged, and flush new carbon cartridges before use per the included instructions.

Check housings, O-rings, and connections for leaks after installation, re-bed tank media once it's exhausted, and retest treated water periodically to confirm the system is still performing.

AFW won't promise a fixed replacement interval for any bone char carbon water filter unless the individual product listing states one, since actual life depends on your specific water.