Ultimate Fluoride III System with Fluoride, Carbon-KDF and Catalytic Carbon Block Water Filter

Triple-cartridge under-sink and countertop filtration system. Made in the USA.

The Ultimate Fluoride III combines a fluoride pre-filter, a KDF/carbon cartridge, and a 1-micron catalytic carbon block post-filter in one comprehensive system. It reduces fluoride along with chloramine, chlorine, THMs, VOCs, lead and other heavy metals, cyst-forming organisms such as cryptosporidium and giardia, and particulates including asbestos. Available in countertop and under-counter configurations: the countertop model connects to your kitchen faucet with a lead-free push-button diverter, and the under-counter model installs out of sight under the sink.

Why filter fluoride

Fluoride has long been added to public drinking water for dental health, and the science on ingested fluoride at higher exposure levels has advanced considerably. If you prefer to reduce the fluoride in your tap water, the current research gives you solid ground to stand on.

• Federal review (2024): The U.S. National Toxicology Program completed a systematic review of fluoride and brain development. It concluded, with moderate confidence, that higher fluoride exposures (drinking water above the World Health Organization guideline of 1.5 mg/L) are consistently associated with lower IQ in children. The review did not address fluoride levels typical of optimally fluoridated U.S. water, and noted more research is needed at lower exposures.
• Federal court ruling (September 2024): A U.S. District Court ordered the EPA to take regulatory action, finding that fluoride in drinking water at current U.S. levels poses an “unreasonable risk” to children’s health. The court was clear it did not conclude with certainty that fluoridated water is harmful, only that the potential risk is high enough to require the EPA to respond.
• A matter of choice: Naturally occurring fluoride is present in some water as calcium fluoride. Fluoride added to municipal supplies is typically introduced as a fluorosilicate compound. Reducing what reaches your glass is a reasonable personal choice, and the Ultimate Fluoride III is designed to do exactly that.

The Ultimate Fluoride III is a water filtration device. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease.

Triple-cartridge filtration

The Ultimate Fluoride III runs water through three specialized cartridges, each with multiple filtration stages, to reduce a broad range of common tap water contaminants.

Cartridge #1: Fluoride pre-filtration

• Stage 1: 100-micron reticulated poly foam (filters particles roughly the size of a human hair)
• Stage 2: Over 1,000 grams of pre-conditioned fine-mesh activated alumina (designed to reduce fluoride to below 0.5 ppm)
• Stage 3: 20-micron spun-bonded polypropylene (filters particulates about one-quarter the size of a human hair)

Cartridge #2: KDF (copper/zinc) and granular activated carbon

• Stage 1: 100-micron reticulated poly foam (filters particles roughly the size of a human hair)
• Stage 2: 1.5 lbs of KDF 55 to reduce chlorine, lead, and heavy metals
• Stage 3: High-efficiency GAC (granular activated coconut shell carbon) to reduce chlorine, VOCs, THMs, taste, and odor
• Stage 4: 20-micron spun-bonded polypropylene (filters particulates about one-quarter the size of a human hair)

Cartridge #3: 1-micron compressed catalytic carbon block

• Stage 1: Protective polypropylene netting (large particles: dirt, sediment, rust)
• Stage 2: 15-micron bonded polypropylene layer (medium-size particles)
• Stage 3: 5-micron melt-blown polypropylene layer (fine particles)
• Stage 4: Catalytic carbon block compressed to a 1-micron pore size with radial filtration. This design prevents channeling or bypass and is proven to reduce or eliminate chloramine and chlorine along with their associated THMs and VOCs, lead and heavy metals, micro-organisms (giardia and cryptosporidium), asbestos, and particles larger than 1 micron.

Features and specifications

• No channeling or bypassing
• Tested to NSF standards 42, 53, and 61
• 1,000-gallon capacity, or one year
• Easy-to-install chrome, lead-free push-button diverter valve
• Heavy-duty polypropylene plastic housing
• Heavy-duty enameled metal mounting bracket
• Filter wrench included for easy cartridge replacement
• Dimensions: 14" H x 14" W x 6" D
• Easy installation (very light plumbing required)
• Maintenance-free, excluding annual cartridge replacement
• 1-year limited warranty on housing
• Risk-free 30-day money-back guarantee
• For cold and warm water use (up to 100°F)

Have a specific water problem?

Other cartridges are available to add the reduction of nitrates, hardness, arsenic, and sodium. Call us at (479) 521-7786 for custom-made filtration systems tailored to your water.

Replacement Cartridge: Ultimate Fluoride III Replacement Cartridges ( UF3RC )

All products have a 30-day money-back guarantee from date of purchase. Money-back guarantee does not apply if filter has been damaged due to misuse, improper installation, excessive water pressure or temperature, freezing or general misapplication of the filters use and purpose. For a product refund, return filter to place of purchase (15% restocking fee may apply). A sales receipt or proof of purchase must be included. All returns require a Return Authorization number. Shipping on all returned merchandise is the sole responsibility of the buyer unless otherwise specified.

Free Shipping is a standard 7-10 business days. Expedited Shipping is 3-4 business days however this does not apply to international orders. ALL international orders attract a shipping fee including orders to Canada, Puerto Rico, Hawaii, and all other US territories.

Ground Shipping Schedule (Free Shipping in the continental U.S., lower 48 states ONLY)

In-stock orders placed before noon central time are usually shipped the same business day.

In-stock orders placed after noon central time will usually ship the following business day.

International Shipments:

International orders must be purchased with PayPal. All International orders, unless otherwise requested, will ship via U.S.P.S. Global Priority Mail (6-14 business days’ delivery) in order to conserve costs and additional duties and fees