Product description

Experience the iSpring Difference 
First Stage PP Sediment Removal Water Filter
Multi-layer filtration for fewer clogs and minimal pressure loss.Specially designed to remove sediments, dust, sand, large particles, silt, dirt, and rust. 
The Second & Third Stages Water Filters
iSpring FC25B carbon block water filter uses premium coconut shell carbon and advanced fabrication for optimal efficiency and longevity.It filters up to 100,000 gallons (or lasts up to 12 months), removing up to 99% of chlorine, as well as color, cloudiness, and various tastes and odors from water.

Lab-Tested Superior Chlorine Removal
Independent lab testing proves that iSpring filters remove significantly more chlorine than other leading brands. Our advanced filtration media ensures cleaner, fresher-tasting water and long-lasting performance you can trust—backed by real, verifiable lab results.

We listen. We improve.
Your feedback drives our innovation. iSpring refines every detail based on real user experience — earning 98% positive reviews since mid-2025, far ahead of others.

1 Signs of Chlorine Issues
2 Remove Chlorine w/ WGB32B
3 DIY Installation
4 A Team You Can Count On
5 Recommended Setup Order
Do I still need a water softener if my water is hard?
Yes. Our WGB32B whole house water filter system does not reduce hardness. It is recommended to install a water softener, such as the iSpring WCS45KG model, before this system if your TDS level is above 300 ppm.
What contaminants can this system remove?
Turbidity, visible particulate matter, sand, silt, dirt, rust, chlorine, taste, odor, THMs, VOCs, chemicals, and more.
Can I install this system outdoors?
Install indoors in a well-ventilated area, shielded from wind and rain, away from direct sunlight and heat. Consider water leakage protection. For outdoor installation, ensure insulation for frost, sun, and waterproofing for both unit and pipes.
Can I use this system if my water flow is from left to right?
Yes, you can. However, please note that the inlet/outlet marking on the system is fixed, so you will need to flip the machine head to accommodate this setup. To do this, simply unscrew the screws on the machine head and flip it.
Specifications
Minimum Working Pressure 25 psi Maximum Working Pressure 80 psi Operating Temperature 40-100 ºF pH Range 6 – 9 DIY Installation Yes – comes with manual and step-by-step video guide. Inlet / Outlet 1 inch Female NPT
Replacement Water Filters and Accessories
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Customer Reviews
4.8 out of 5 stars 329
4.8 out of 5 stars 717
4.7 out of 5 stars 2,240
4.6 out of 5 stars 67
3.3 out of 5 stars 4
Price
$114.99$114.99
$28.79$28.79
$49.99$49.99
$173.80$173.80
$24.99$24.99
Tackles
Sediment, Chlorine, Odor
Sediment down to 5 microns
Chlorine, Odor, Taste
Water Leaks (w/ Auto Shut-Off)
Filter Lifespan
Media
PP+Carbon Block
Polypropylene
Coconut Shell Carbon
–
–
Recommended replacement cycle
Every 6-12 months
Up to 100K Gallons / 12 Months
Up to 100K Gallons / 12 Months
–
Up to 12 Months
Size
4.5” x 20”
4.5” x 20”
4.5” x 20”
1″ MNPT + 3/4″ FNPT
–
Number of Filters
3
1
1
–
Up to 3
Chlorine-Free, Pure Water: Shield your family and appliances with the WGB32B whole house water filter-eradicating up to 99% of chlorine, along with sediments, rust, tastes, odors, herbicides, and more for clean, odor-free water
Easy DIY Setup: Utilize our manual and YouTube guides for straightforward installation. Featuring 1″ NPT inlet/outlet and 20″ x 4.5″ filters, this whole house water filtration system maintains robust water flow (up to 15 GPM) with minimal maintenance
Premium Filtration: The first stage sediment filter reaches 5 microns, while the second and third stage CTO Carbon Block filters use quality coconut shell carbon-tested by a third-party to meet NSF/ANSI standards. The system has a 100,000-gallon capacity for a year’s supply
Customer Service Assurance: Activate your extended warranty and lifelong tech support by registering online. We’re committed to prompt assistance-reach out if you encounter any issues
TDS-Friendly System: Unlike RO systems, our whole house water filters maintain healthy minerals in water. Explore our iSpring Reverse Osmosis (RO) systems if TDS removal is desired
Freshness Guaranteed: Individually wrapped cartridges ensure freshness; unwrap them before use for optimal performance

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