iSpring WGB32B-MKS Whole House Iron and Manganese Water Filter

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Product guide

iSpring WGB32B-MKS Whole House Iron and Manganese Water Filter

The iSpring WGB32B-MKS Whole House Water Filter System is a direct-connect, three-stage filter listed for reducing sediment, iron, manganese, hydrogen sulfide, and other contaminants. Its stated 15 GPM peak flow and up-to-one-year cartridge life suit whole-home treatment, but iron and manganese claims have stated concentration limits.

At a glance

Three filter stages are described: sediment capture, a compound filter targeting several contaminants, and a dedicated iron filter.
Manufacturer claims iron reduction up to 3 ppm and manganese reduction up to 1 ppm. Results depend on incoming water quality.
The listing states a peak flow of 15 GPM and up to 12 months of filter life, depending on water quality and usage.
The system is described as preserving TDS rather than reducing dissolved solids like an RO system.

Price

$517.49Save 15%

Reference price: ~~$608.99~~

Price checked: Nov 14, 2026

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Often bought together

iSpring UVF55FS Whole House UV Water Filter, 1" MNPT Inlet/Outlet, 12 GPM | 55W, Whole House Ultraviolet Water Purifier Filte

$299.90

iSpring HB28B Whole House Water Filter Housing, 20" x 4.5" Universal Housing for Whole Home Water Filtration w/ 1" NPT Ports

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Pros and cons

Pros

Whole-house treatment is designed for the household water supply rather than a single faucet.
The stated 1-inch connections and 15 GPM peak flow provide useful installation and flow reference points.
Listed cartridge capacity and life help buyers plan replacement intervals, subject to water quality and usage.

Cons

The system does not reduce water hardness, so hard-water households may still need a separate softener.
Its stated iron and manganese reduction limits may not fit water above 3 ppm iron or 1 ppm manganese.

Technical specifications

22 specifications

Identity and operation
Brand	iSpring
Model	Whole House Water Filter System
Model number	WGB32B-MKS
Power configuration	Gravity-fed/Water Pressure
Installation type	Direct Connection
Purification method	Granular Activated Carbon, Sedimentation

Filtration and capacity
Maximum flow rate	15 gpm
Peak flow rate	15 GPM
Rated capacity	150000 gallons
Filter life cycle	1 years
Maximum supported water TDS level	500
Iron reduction claim	up to 3.0 ppm
Manganese reduction claim	up to 1.0 ppm
Filter cartridge size	20" x 4.5"

Operating conditions and connections
Minimum working pressure	25 psi
Maximum working pressure	80 psi
Operating temperature	40-100 ºF
Upper temperature rating	125 °F
pH range	6 - 11
Inlet/outlet	1 inch

Dimensions and materials
Dimensions listed	24.5"L x 8"W x 28"H
Material listed	Stainless Steel, Brass, Reinforced Plastic

What to know before buying

Install indoors in a well-ventilated area away from direct sunlight and heat, protected from wind and rain. The listing calls for insulation and weather protection if installed outdoors. The system does not soften water or reduce TDS.

Listing details to confirm

The listing gives both a 125 °F upper temperature rating and an operating range of 40-100 ºF. It also lists a maximum TDS of 500 while advising a softener above 300 ppm for high-hardness water, so confirm the relevant operating limit for your water and installation. The capacity, up-to-12-month life, and flow figures are manufacturer claims, not verified performance guarantees.

What’s in the box

Included

System
Filter cartridges
Wrench
Manual

Who is it for?

A good fit for

Households seeking a whole-house filter with stated iron and manganese reduction for water within the listed concentration limits.
Buyers looking for sediment filtration alongside treatment claims for chlorine, chloramine, lead, mercury, hydrogen sulfide, and other listed contaminants.
Homes where a stated peak flow of 15 GPM and 1-inch inlet/outlet connections match the plumbing plan.

Less suited to

Water treatment needs requiring iron reduction above 3 ppm or manganese reduction above 1 ppm, based on the manufacturer's stated limits.
Households that need water softening or TDS reduction from this system alone.

iSpring WGB32B-MKS Whole House Iron and Manganese Water Filter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 65 ratings

5 stars76%76%
4 stars14%14%
3 stars3%3%
2 stars2%2%
1 star5%5%

Customer feedback reports positive experiences with effectiveness, installation, taste, and sediment reduction, including a report of fewer sediment deposits on toilets. Odor results are mixed, with some customers saying the smell disappeared and others still noticing sulfur. For households chiefly concerned with sulfur odor, those differing experiences matter alongside the listing's treatment claims and the need to match the system to the incoming water.

Positive themes

Customers report ease of installation and effective results.
Positive feedback mentions water taste and sediment reduction.

Mixed feedback

Customer experiences with odor reduction differ, including reports of persistent sulfur smell.

Frequently asked questions

What does this system claim to reduce?

The listing describes sediment filtration and claims the compound stage targets chlorine, chloramine, lead, mercury, hydrogen sulfide, and heavy metals. It states iron reduction up to 3 ppm and manganese reduction up to 1 ppm.

Does it soften hard water or reduce TDS?

No. The listing says the filter preserves TDS and does not reduce hardness. A separate softener may be needed for hard water, and an RO system is suggested for TDS reduction.

How often do the filters need replacement?

The listing states up to 12 months or 150,000 gallons, with actual life depending on water quality and usage.

Can it be installed outdoors?

The listing recommends indoor installation in a ventilated area away from sun and heat. For outdoor installation, it says the unit and pipes need protection from frost, sun, and water.