Whole-House

WGB32B Whole House Filter

The 3-stage WGB32B treats water at the main line, reducing sediment, rust, taste, odor, and up to 99% of chlorine before it reaches every tap, shower, and appliance in the home.
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iSpring WGB32B whole house water filter system with three blue 20-inch housings on a black mounting bracket against a light gray background

Three stages built for steady flow

The WGB32B stacks three large housings on a single bracket: a 20-inch sediment cartridge, a carbon block cartridge, and room for a third stage matched to your water. Ports and pressure ratings are sized for whole-house flow.

20-inch sediment stage up front

The first stage holds a 20-inch sediment cartridge that catches sand, silt, rust, and other particles, keeping the two later stages focused on chemistry rather than on debris from the line.

Carbon block media for chlorine

The carbon block cartridge is where chlorine, taste, and odor are reduced. Its dense structure gives water real contact time, which is why the difference shows up quickly at the tap.

1-inch ports sized for whole-house flow

One-inch female NPT ports keep whole-house flow moving, and the system is rated for 25 to 80 psi of working pressure with water between 40 and 100 degrees Fahrenheit.

Three large blue 20-inch filter housings mounted in a row on a black steel bracket with 1-inch inlet and outlet ports
Clear water running from a kitchen faucet into a plain glass, with the iSpring WGB32B three-housing filter system mounted on the wall behind
Water You Can Taste

Cleaner water in every tap and shower

Water streaming from a chrome showerhead in a bright tiled shower with spotless glass and fixtures

Chlorine reduction at the main line

Chlorine is what you smell and taste in the shower and at the kitchen sink. The carbon block stage cuts up to 99% of it before the water reaches your family, so drinking water and rinse water both come out cleaner.

Spotless drinking glasses drying upside down on a wire rack beside a kitchen sink

Better-tasting water in every room

Sediment, rust, and discoloration settle into glasses and fixtures. Capturing those particles at the entry point keeps dishes clearer and the water you cook with free of grit and off-taste.

A washing machine and water heater connected with clean plumbing in a tidy utility room

Cleaner water for appliances and fixtures

Chlorine, sediment, and scale shorten the life of water heaters, dishwashers, and washing machines. Filtering the whole supply first means those appliances get cleaner water from day one.

Exterior of a modest two-story suburban home with a basement window on a clear afternoon

A fit for city and well water homes

This system suits homes that want clean water at every fixture rather than at a single faucet, whether the problem is chlorine smell, visible sediment, or protecting appliances on a well or municipal supply.

City water with a chlorine smell

City water with a strong chlorine smell at the showerhead is the most common reason people install the WGB32B, since the carbon stage targets that complaint right where the water enters the home.

Well water and older plumbing

Households on well water or older plumbing often see sediment, rust, and discoloration. The 20-inch sediment stage handles that load before it reaches fixtures, hoses, and appliances.

Whole-home filtration before an RO system

Families who want whole-house filtration without a drinking system under the sink can pair this with a separate reverse osmosis unit, keeping whole-house and drinking water tasks separate.

Install once, then swap cartridges

An adult's hands threading a large blue filter housing onto the mounted whole house filter bracket in a basement
A black filter bracket with three empty housings bolted to wooden wall studs beside the copper main line

Mount the bracket on a stud wall

Mount the bracket on studs, then connect the system to the main line after the shut-off and before any branches. The system measures about 24.5 inches long and 28 inches high, so plan wall space.

Two white filter cartridges seated in open blue housings with a bucket and towel on the floor

Seat the cartridges before water flows

Open the housings to seat the sediment and carbon cartridges, then slowly open the water and let it run until carbon fines clear. Expect a short burst of dark water before it turns clear.

Fresh replacement filter cartridges on a basement shelf beside the installed filter system and a small wall calendar

Set a cartridge change reminder

Mark your calendar for cartridge changes. Long-term owners report checking captured sediment about once a year, and iSpring support can help identify the right replacement media when flow slows.

Rated 4.87 out of 5

What owners report after years of use

I bought my WGB32B about four years ago and ran into an unexpected problem with the system. When I called, the rep was patient and attentive, and iSpring sent a replacement base and new filter cartridges at no cost. After four years of ownership, standing behind the product that way meant a lot to me.
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Verified Homeowner
Four years in, replaced under warranty at no cost
We installed the system in January and had minor leaks right away. Support helped us resolve it and ordered a new manifold head. When later o-rings we sourced ourselves turned out to be too thick, one more quick call got us the correct fix without any runaround or frustration.
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Marcy T.
Minor install leaks solved quickly by support
We love how this filters our city water. You can really tell the difference once the whole house system is running. When I had installation issues, support was patient and explained everything I needed to resolve the problem, and it was handled with prompt, professional service.
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Daniel R.
A city water difference you notice immediately
After six years of flawless service, an accidental failure meant I needed some new parts. I explained the problem on the phone and the rep knew exactly which parts to send. The whole transaction was quick and painless, and I would ask for that same person again next time.
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K. Whitfield
Six years of service, then parts in one call
Expensive at first, but worth it. I installed this eight years ago on city water, and every time we change the filters I am amazed at how much grime it has captured. I later switched to a sediment, carbon, and scale combination for even better results throughout the house.
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Greg P.
Eight years in, and the captured grime still surprises

Common questions

Sizing, cartridge schedules, and the line between filtration and softening are the questions asked most often.
The WGB32B treats water at the main line, so every tap, shower, and appliance benefits. An under-sink reverse osmosis system treats only the drinking line. Many households run both together.
iSpring recommends changing cartridges on a schedule that fits your water conditions. Owners report checking the sediment cartridge about once a year and replacing media whenever flow slows down.
No. The WGB32B is a filtration system, not a softener. It reduces sediment, chlorine, taste, and odor, but hardness minerals pass through, so hard-water homes typically add a separate softener.
Working pressure is rated from 25 to 80 psi, operating temperature from 40 to 100 degrees Fahrenheit, and pH range from 6 to 9. Keep the system indoors or sheltered from freezing weather.
Inlet and outlet ports are 1 inch female NPT, which suits most main-line installations. The housings are 20 inches, so allow roughly 24.5 by 8 by 28 inches of wall space plus room to work.
A homeowner comparing two replacement filter cartridges at a workbench beside an open filter housing

More iSpring water solutions to compare

Once you know the WGB32B fits your plumbing, the next questions are about cartridge choices, pairing it with a reverse osmosis drinking system, or comparing a water softener for hardness. Our guides walk through each option.
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