• NSF/ANSI Certifications
    • 42 Chlorine, Taste & Odor Certifies that the filter reduces chlorine, taste, odor, and other aesthetic contaminants that affect how your drinking water looks, smells, and tastes. Every sip, fresher.
    • 53 Health-Based Contaminant Reduction The most critical certification — certifies reduction of health-threatening contaminants including lead, volatile organic compounds (VOCs), chromium, and cysts like Cryptosporidium and Giardia.
    • 372 Lead-Free Materials Certifies that every part of the filter touching your water is lead-free by law — weighted lead content at or below 0.25%. Safety built into the hardware itself, not just the filtration media.
  • Certified to Reduce
    • Lead
    • Cysts
    • Giardia
    • Cryptosporidium
    • Chlorine
    • Taste
    • Odor
  • 30-day money-back100% satisfaction guarantee

Instapure F5 Lead & Cyst Reducing Faucet Water Filter — White

$35.95
Regular price  Sale price  $35.95

Filter performance at a glance

  • 0.5 micron carbon block Filter media
  • 100 gallons Filter life
  • 3 months Typical life

Frequently Asked Questions

  • Will the Instapure F2/F5 system fit my faucet?
    Instapure F2 and F5 systems fit most standard Delta®, MOEN®, KOHLER®, American Standard®, Pfister®, GROHE®, Peerless® & Glacier Bay® Faucets and Taps with Removable Aerator sizes 55/64-27 External Threads (Male) 15/16-27 & 13/16-27 Internal Threads (Female) Threads
  • Can you use an R2 Filter in the F5 System?
    Yes, the R2 & R5 filters are interchangeable and fit all F2, F5, F6 Systems.

What Our NSF/ANSI Certifications Actually Mean for Your Family

NSF/ANSI International is the gold standard for water filtration certification — independent, rigorous, and trusted by regulators worldwide.

  • NSF/ANSI 42

    Chlorine, Taste & Odor

    Certifies that the filter reduces chlorine, taste, odor, and other aesthetic contaminants that affect how your drinking water looks, smells, and tastes. Every sip, fresher.

  • NSF/ANSI 53

    Health-Based Contaminant Reduction

    The most critical certification — certifies reduction of health-threatening contaminants including lead, volatile organic compounds (VOCs), chromium, and cysts like Cryptosporidium and Giardia.

  • NSF/ANSI 372

    Lead-Free Materials

    Certifies that every part of the filter touching your water is lead-free by law — weighted lead content at or below 0.25%. Safety built into the hardware itself, not just the filtration media.

SINCE 1975

Trusted by American Families for 50 Years

Instapure has been a trusted name in home water filtration since 1975. Long before water filter certifications became mainstream, we were already committed to delivering clean, safe drinking water to American households. Five decades of expertise go into every filter we make — and our commitment to American-made quality hasn't wavered.

  • Est. 1975

    Nearly 50 years of filtration expertise

  • 100% USA Made

    Instapure's refrigerator filters are Made in USA

  • NSF/ANSI Certified

    Independently verified, not self-certified

Clean water shouldn't be a luxury - we've been delivering quality and affordable filtration products since 1975.