Genuine Instapure R8 Replacement Cartridge for F8 ULTRA Chrome
Genuine Instapure R8 Replacement Cartridge for F8 ULTRA Chrome
Coconut shells and coconut shell carbon on a white background with text about nature's best filtration media.
Genuine Instapure R8 Replacement Cartridge for F8 ULTRA Chrome
Genuine Instapure R8 Replacement Cartridge for F8 ULTRA Chrome
  • NSF/ANSI Certifications
    • 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.
  • Reductions
    • Lead
    • VOCs
    • Chlorine
    • Taste
    • Odor
  • 30-day money-back100% satisfaction guarantee

Genuine Instapure R8 Replacement Cartridge for F8 ULTRA Chrome

$29.95
$29.95

Filter performance at a glance

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

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 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.

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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.
  • I ran hot water through my filter is it still good
    The F2 & F5 Systems should not be used to filter Hot Water, however a small amount by accident will not harm the filter
  • My F2/F5 System drips some water from the filtered side when not filtering water
    It is normal for a small amount of water to drip from the filtered side when not in use. The amount of water depends on how well the filtered pathways holds a vacuum. The drips are water draining out of the filtered side. The Angle the unit is installed at can increase and decrease this flow.
  • Is the Aerator removable
    Yes, the aerator unscrews and allows for dishwasher or another sprayer hook up. This may also be done to “Clean” any debris form the Aerator Screen.
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.