Boroux Original Foundation Black Filters 2 Pack - Berkey Water Filter

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• Replacement Filters
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BETTER WATER STARTS HERE 💧

The BOROUX Foundation™ Filter was created for families who want more than “good enough.” Every drop is fresh, clean, and free from the chemical aftertaste so common in tap and competitor systems.

REMOVES WHAT OTHERS MISS 🛡️

Independently tested to reduce PFAS (“forever chemicals”), heavy metals, pharmaceuticals, and disinfectant byproducts — the real-world pollutants most filters leave behind. see what it removes ↓

CONSISTENT, YEAR-ROUND PERFORMANCE 📆

Replace filters on a simple annual rhythm to stay within verified reduction levels. Steady flow, steady protection, no guesswork. see lifespan & maintenance tips ↓

EFFORTLESS COMPATIBILITY 🧩

Fits BOROUX, Berkey, Alexapure, ProOne, Doulton, and other leading gravity systems using standard black-element threads. Installs in minutes — no tools, no adapters, no frustration.

INDEPENDENTLY VERIFIED QUALITY 🧪

Certified to NSF/ANSI 42, 401, and 372 standards for chlorine, emerging contaminants, and lead-free safety — standards many look up to, but few actually meet. see how BOROUX stacks up ↓

BACKED BY THE BOROUX PROMISE 💬

Try it for 60 days, risk-free. If it doesn’t transform the way your water feels, tastes, and supports your home — send it back for a full refund. No questions, just confidence. see what real people are saying ↓

What the Boroux Foundation Filter Removes — and Why It Matters Disinfectants & Byproducts

Removes: Chlorine, chloramine, trihalomethanes (THMs), and related compounds.

Why it matters: Improves taste and comfort; limits long-term byproduct exposure.

Microplastics

Removes: Particles between 0.5 µm and 1.0 µm.

Why it matters: Microplastics can carry chemicals and may contribute to inflammation/hormone disruption.

PFAS (“Forever Chemicals”)

Removes: PFOA, PFOS, PFNA, PFHxS, and related compounds.

Why it matters: Persistent, bioaccumulative; linked to thyroid, immune, fertility and cancer risks.

Heavy Metals

Removes: Lead, mercury, cadmium, chromium III & VI, uranium.

Why it matters: Even small amounts affect brain, kidney, and development — critical for kids/pregnancy.

Pharmaceuticals

Removes: Ibuprofen, naproxen, carbamazepine, estrone, atenolol, and others.

Why it matters: Ongoing trace exposure can disrupt hormones and antibiotic effectiveness.

Pesticides, Herbicides & Insecticides

Removes: Atrazine, glyphosate, DEET, lindane, and more.

Why it matters: Can interfere with hormone balance and irritate skin/eyes at low levels.

Industrial Chemicals (incl. VOCs)

Removes: Benzene, BPA, toluene, trichloroethylene, TCPP, TCEP, and similar compounds.

Why it matters: Associated with liver, kidney, nervous-system effects and cancer risk.

Broad, independently tested protection from real-world contaminants that affect taste, safety, and long-term health. Real-World Comparison: Cost, Waste & Proven Effectiveness

Big “gallon” claims are usually for chlorine. This focuses on PFAS, heavy metals, pesticides, VOCs, and more.

strong mixed/limited weak/untested System Effective Protection Window* Test Depth & Volume** Approx. Cost / Gallon Plastic Waste / Year What This Means BOROUX Foundation (Gravity)
independently tested PFAS & complex contaminants: ~400–800 gal per set (2 filters).
Chlorine/chloramine: ~4,000–12,000 gal class performance. Broad panel (PFAS, heavy metals, pesticides, VOCs, pharma) with volume endurance. Example: $160 ÷ ~800 gal → $0.20/gal
💲 Low: two long-life elements/yr (or less), no bottles. Wide coverage + transparent volumes per contaminant; plan replacements honestly. Berkey-style Gravity Good on chlorine/particulates; mixed transparency on PFAS/complex organics. Large totals often for taste/odor; complex contaminants sometimes small-volume tests. Use lowest verified PFAS/metal figure, not chlorine.
💲💲 Low. Solid taste/odor control; verify lab volumes by contaminant. Generic Online Gravity Filters Claims vary; PFAS/industrial performance depends on model; endurance often only for chlorine. Some third-party tests; many rely on small challenges for complex contaminants. Use verified PFAS/metal gallons; assume shorter than chlorine if none provided.
💲💲💲 Low–moderate (depends on frequency). Budget option; confirm breadth + endurance before relying on big gallon claims. Leading Water Pitcher Primarily taste/odor + some metals; limited PFAS/complex organics; short life (weeks). Narrow panels; small cartridges → shorter verified life. Frequent swaps → higher $/gal over a year.
💲💲💲💲 Moderate–high. Convenient & cheap up front; expect frequent changes + narrower protection. Bottled Water Not a filter; no at-home removal. Regulated as a food product, not a home filtration system. Typically highest.
💲💲💲💲💲 Very high (single-use). Convenient, but costly & waste-heavy; doesn’t address tap contaminants. How to read this: * Effective Protection Window = practical gallons for demanding contaminants (PFAS, heavy metals, pesticides, VOCs) — not just chlorine. ** Test Depth & Volume matters: many big “gallon” claims only cover chlorine; plan using the lowest verified figure among the hardest categories. Expected Filter Lifetime by Contaminant (Foundation™ + Proactive™)

Lifespan marks where reduction efficiency begins to taper — not when filtration stops. Values below reflect practical, verified windows under typical municipal water and daily use (≈1.5–2 gal/day). Replace on schedule to keep performance in the certified range.

Contaminant Category Foundation™ (Primary Stage) Proactive™ (Secondary Stage) Add-On Disinfectants & Byproducts
Chlorine, chloramine, THMs Verified window: 4,000–12,000 gal per system
Typical use: ~2 gal/day (≈730/yr)
Est. lifespan: 5–10 years before chlorine breakthrough.
Efficiency begins to taper after the window; taste/odor reduction usually continues well beyond. Handled by Foundation stage; Proactive not required for this category. PFAS (“Forever Chemicals”) Verified window: ≈800 gal per system
Typical use: 1.5–2 gal/day
Est. lifespan: 12–15 months under normal municipal loads.
Window indicates where removal begins to fall from ≥95%; replace at ~12 months to stay ahead of breakthrough. Not targeted by Proactive (fluoride-specific media). Heavy Metals
Lead, mercury, chromium, uranium Verified window: 500–1,600 gal (metal & pH dependent)
Typical use: 1.5–2 gal/day
Est. lifespan: 10–14 months.
Onset of tapering, not exhaustion; reduction continues at lower levels beyond the certified window. Not targeted by Proactive (fluoride-specific media). Pharmaceuticals Verified window: 400–500 gal per system
Typical use: 1.5–2 gal/day
Est. lifespan: 7–11 months.
Reduction softens after this period; a portion is still captured. Not targeted by Proactive. Pesticides & Herbicides Verified window: 400–700 gal
Typical use: 1.5–2 gal/day
Est. lifespan: 8–12 months.
Point where efficiency starts to decline from peak; agricultural/organic load may shorten this. Not targeted by Proactive. Industrial Chemicals & VOCs Verified window: 300–400 gal
Typical use: 1.5–2 gal/day
Est. lifespan: 6–9 months.
Adsorption sites saturate faster for VOCs; this marks measurable breakthrough, not total loss. Not targeted by Proactive. Microplastics & Sediment Verified window: Continuous for system lifetime
Est. lifespan: Follows the shortest critical contaminant (generally 12 months).
Capture (≥98.9% for 0.5–1.0 µm) remains steady; flow restriction is your cue to replace. Not targeted by Proactive. Fluoride (Municipal) Proactive™ Foundation does not reduce fluoride; add Proactive stage. Verified window: up to 1,000 gal per pair
Est. lifespan: Typically 9–12 months under normal municipal fluoride levels (0.7–1.2 mg/L).
Effectiveness gradually tapers after the certified volume — replace annually for consistent fluoride reduction and balanced taste. Recommended Replacement Most homes using 1.5–2 gal/day: Replace every 12 months to maintain verified protection. Lower-use households may extend to ~15 months. Proactive™: Every ~9–12 months; align with annual change or sooner if fluoride load is high. + Add Proactive Filters Notes: These are practical windows where verified reduction begins to taper, not a hard stop. Actual life varies with water chemistry, contaminant load, and daily volume. For simplicity, many homes change both stages annually; in high-fluoride areas, replace Proactive™ on the earlier side. What Customers Are Saying

• ⭐️⭐️⭐️⭐️⭐️ Denver, CO

  “I'm so glad that you're conducting ongoing testing on your filters and posting the results for consumers to see.”

  Jennifer Andrew
• ⭐️⭐️⭐️⭐️⭐️ Pueblo, CO

  “The water at our home always tasted off. Ever since we got our filters it’s great! My three year old daughter continually asks for water now! It’s a real game changer!”

  Max Layton
• ⭐️⭐️⭐️⭐️⭐️ Seattle, WA

  “Love these filters! … easy to prime, easy to install, and work much faster than the old ones ever did.”

  Karen W.
• ⭐️⭐️⭐️⭐️⭐️ Carlisle, IN

  “The filters work great, make terrible tasting water tasty.”

  Virgil Schmidt

* Pulled from the BOROUX Foundation™ Black Filters product page reviews.

Frequently Asked Questions

Quick answers about how the Foundation™ filters work, what they’re made to remove, and how long they last.

How do the BOROUX Foundation™ Filters work? They use a specialized activated-carbon block to both adsorb contaminants and physically trap tiny particles in microscopic pores—like a super-fine sieve. This combination targets taste/odor compounds and a wide range of chemical contaminants. Source: BOROUX FAQ & product details. What certifications do the Foundation™ Filters have? Certified by the Water Quality Association (WQA) to NSF/ANSI 42, NSF/ANSI/CAN 401, and NSF/ANSI/CAN 372. Source: BOROUX product FAQ. How long do the filters last? Recommended replacement is every 12 months under typical household use. Actual life varies with water quality and daily volume. Source: BOROUX blog guidance on lifespan. What contaminants are they designed to reduce? Broad reduction across disinfectants/byproducts, heavy metals, PFAS, pharmaceuticals, VOCs/industrial chemicals, pesticides, and micro-particles. See full test results for specific compounds and reduction percentages. Source: “What Does BOROUX Filter?” page. Do the Foundation™ Filters reduce fluoride? No—fluoride reduction is provided by the BOROUX Proactive™ Fluoride Filters as a second stage. Source: BOROUX FAQ. Are Foundation™ Filters compatible with other gravity systems? Yes—designed to fit most common gravity-fed systems. Check the compatibility list if adapting an existing unit. Source: BOROUX FAQ. Where are the filters made? Filters are crafted in the USA. (Some accessory components may be sourced internationally.) Source: BOROUX FAQ. What’s the micron performance? Effective capture in the ~0.5–1.0 μm range for many waterborne particles—small enough to reduce micro-particulates while maintaining flow. Source: BOROUX micron-rating guidance. How do I prime or set up the filters? Follow BOROUX’s step-by-step How-To guides for priming and setup to ensure best flow and performance. Source: BOROUX How-To pages.