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iSpring F3WGB31BPFKS Whole House Water Filter Replacement Pack, SGS-Tested Remove up to 99% PFAS, Also Target Heavy Metals, Sediments, Chlorine, Up to 12 Months, 10" × 4.5", Fits WGB31B-PFKS

$205.99
$205.99 $205.99
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iSpring F3WGB31BPFKS
$205.99
iSpring F3WGB31BPFKS Whole House Water Filter Replacement Pack, SGS-Tested Remove up to 99% PFAS, Also Target Heavy Metals, Sediments, Chlorine, Up to 12 Months, 10" × 4.5", Fits WGB31B-PFKSiSpring F3WGB31BPFKS

Features

Product Description
The iSpring F3WGB31BPFKS replacement filter set restores the full 3-stage filtration of your WGB31B-PFKS whole house water filter system, delivering powerful protection against modern water contaminants. It includes a sediment filter(FP15B) that captures dirt, sand, and rust to protect pipes and appliances, a premium carbon filter tested by SGS to remove up to 99% of PFAS, including PFOA and PFOS, and a GAC KDF filter that reduces chlorine, lead, mercury, and hydrogen sulfide. Together, the filters also reduce VOCs, unpleasant taste, and odor—ensuring high-quality water from every tap in your home. Each cartridge lasts up to 12 months or filters up to 50,000 gallons. Individually sealed for freshness, this is a reliable whole house filter replacement for both city and well water. For TDS reduction, pair with an iSpring RO system at the point of use.
  • AvailabilityIn Stock
  • Model F3WGB31BPFKS
  • Manufacturer iSpring
  • Product Dimensions 4.5"L x 4.5"W x 10.0"H
  • Product Weight 6.5 LB

Manuals

Whole House 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
How to use
How to troubleshoot