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iSpring F3WGB31BKDS Ultimate Protection Whole House Water Filter Replacement Pack, Reduces Heavy Metals, Scale, Chlorine, Hydrogen Sulfide, Up to 12 Months, 10" × 4.5", Fits WGB31B-KDS

$248.99
$248.99 $248.99
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iSpring F3WGB31BKDS
$248.99
iSpring F3WGB31BKDS Ultimate Protection Whole House Water Filter Replacement Pack, Reduces Heavy Metals, Scale, Chlorine, Hydrogen Sulfide, Up to 12 Months, 10" × 4.5", Fits WGB31B-KDSiSpring F3WGB31BKDS

Features

Product Description
The iSpring F3WGB31BKDS 3-stage whole house water filter replacement pack is designed to keep your WGB31B-KDS whole house water filter performing at its best. This water filter set features a polyphosphate anti-scale filter (FWDS80K) to reduce scale and corrosion, a GAC KDF filter (FG15B-KS) to remove chlorine, chloramine, lead, mercury, and hydrogen sulfide, and a carbon block filter (FC15B) that improves taste and reduces odors—providing consistent protection at every water outlet. Perfect for households using the iSpring WGB31B-KDS or other standard 10” x 4.5” whole house water filters, these cartridges provide dependable protection for both city or well water applications. This whole house water filter supports up to 15 GPM flow and treats up to 80,000 gallons of water or lasts up to 12 months, depending on usage. It retains healthy minerals and does not reduce TDS. For complete purification, pair with an iSpring Reverse Osmosis system.
  • AvailabilityIn Stock
  • Model F3WGB31BKDS
  • Manufacturer iSpring
  • Product Dimensions 4.5"L x 4.5"W x 10.0"H
  • Product Weight 12.3 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