iSpring F3-NC Replacement Filter Cartridge Pack Set for US31-NC - ispringfilter

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iSpring F3-NC 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for US31-NC

$49.99

$49.99 ~~$49.99~~

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Individually wrapped 6-month high capacity prefilter replacement cartridge pack for US31-NC under sink water filtration system
This under-sink water filter uses catalytic carbon for exceptional filtration. Unlike standard carbon filters that remove 40-50% of chloramine, the FC15-NC filter can eliminate up to 99.4%. This high efficiency is due to the catalytic carbon's stronger ability to break down chloramine into harmless substances and absorb residual byproducts, ensuring safe, clean water.
3 pieces of 10" x 2. 5" replacement water filters included: 1x sediment filters, 1x granular activated carbon filters, and 1x carbon block filters.
Note: Please unwrap the cartridges before use. Unlike an RO membrane, this filter retains healthy minerals in your water and does not reduce Total Dissolved Solids (TDS). For TDS removal, consider our iSpring Reverse Osmosis (RO) systems.

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iSpring F3-NC

$49.99

iSpring F3-NC 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for US31-NC

Features

iSpring F3-NC 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for US31-NC

Manuals

2.5x10 General Filters Manual.pdf Download

iSpring vs Other Brands

Feature

NSF/ANSI 58 Certification

Yes (full system certified)

Often partial or none

Verified performance & safety

Filtration Stages

Clear 3/4/5/7 stage options

Usually 4-5 stages

More complete options

Alkaline Remineralization

Available (RCC7AK/RCC7AK-UV)

Rare or expensive add-on

Better taste & pH balance

See-through 1st Stage Housing

Yes, smart flow sensor

Unavailable in most systems

Easy visual inspection

Daily Production

75 GPD (reliable output)

Often lower or overstated

Reliable daily production

Replacement Filters

Widely available & affordable

Hard or harder to find

Lower long-term cost

Installation

DIY friendly, no plumber needed

Can be more complex

Faster & easier set-up

Support & Warranty

Responsive support + solid warranty

Varies widely

Better post-purchase experience

Value for Money

High performance at competitive price

Higher price for similar specs

Better cost-effectiveness

Reviews

Support

How to install