1 / 7iSpring F3WGB32BM 3-Stage Whole House Filter Replacement Pack
Filter: The iSpring F3WGB32BM is a three-stage replacement cartridge pack for whole-house filtration, with stages described for sediment, carbon, and iron and manganese reduction. It is suited to compatible 20-inch by 4.5-inch housings, but does not reduce total dissolved solids.
At a glance
- The three stages are described as sediment, coconut-shell carbon, and catalytic media for iron and manganese.
- The listing describes a 5-micron first-stage sediment filter and up to 15 gpm flow.
- The manufacturer claims reduction of chlorine, rust, herbicides, industrial solvents, and other contaminants in addition to sediment, iron, and manganese.
- These filters are not described as reducing total dissolved solids, and the listing says they retain healthy minerals.
Often bought together
Pros and cons
Pros
- Designed as replacement cartridges for compatible whole-house housings, rather than a complete filtration system.
- The stated range of target contaminants makes the set relevant to buyers addressing both sediment and iron or manganese.
- The listing specifies a 5-micron sediment stage and a maximum flow claim, useful when comparing replacement options.
Cons
- It does not reduce total dissolved solids, so it is not a substitute for an RO system when TDS reduction is required.
- The manufacturer's stated iron-stage capacity is 50,000 gallons at 3.0 ppm iron, while its other stages are described with a 100,000-gallon capacity. Replacement planning may therefore depend on water conditions and stage.
Technical specifications
18 specifications| Brand | iSpring |
|---|---|
| Model | 1 |
| Dimensions listed | 11.4D x 11.4W x 50.8H centimetres |
|---|---|
| Weight listed | 7.26 kg |
| Material listed | Sediment + Carbon + Iron & Manganese Removal |
|---|---|
| Cartridge size described | 20” x 4.5” |
| Sediment filtration | 5 micron |
|---|---|
| Maximum flow rate | 15 gpm |
| Water capacity, first and second stages | 100,000 gal. of water |
| Iron reduction limit | MAX 3.0 ppm |
| Manganese reduction limit | MAX 1.0 ppm |
| Iron-stage capacity | 50,000 gallons at 3.0 ppm for iron |
| Minimum working pressure | 25 psi |
| Maximum working pressure | 80 psi |
| Operating temperature | 40-100 ºF |
| pH range | 6 - 9 |
| External testing certification listed | SGS |
|---|---|
| Testing claim for first and second stages | Both water filters are tested by an independent third-party to meet NSF/ANSI standards. |
What to know before buying
- The 20-inch by 4.5-inch cartridge dimensions and compatibility with WGB32BM and WHO32BM are stated in the listing. Check that the selected housing accepts those cartridges before ordering.
- The manufacturer advises considering other filtration for well or pond water with very high iron or manganese, and advises adding a water softener for hard water with TDS above 300 ppm. The filter is not presented as a TDS-reduction treatment.
- The listing's maximum iron and manganese concentrations are reduction limits, and do not establish performance beyond those conditions.
Listing details to confirm
The listing gives 100,000 gallons for the first and second stages and up to 12 months for the carbon filter, but gives the iron stage a 50,000-gallon capacity at 3.0 ppm iron. It also presents the set as three-stage while describing only the first and second stages in its 100,000-gallon claim. Treat those figures as stage- and condition-specific, not one lifespan for the whole pack. The 15 gpm claim is a stated maximum, not a guarantee of flow in a particular installation.
Who is it for?
A good fit for
- Owners of a compatible iSpring WGB32BM or WHO32BM whole-house housing seeking a replacement set for sediment, carbon, and iron or manganese filtration.
- Buyers who want whole-house filtration for water used across household taps and appliances, while retaining minerals rather than reducing TDS.
Less suited to
- Anyone seeking a complete filter system rather than replacement cartridges.
- Buyers who need TDS reduction, which the listing explicitly says this filter does not provide.
- Water with very high iron or manganese levels, or buyers whose housing does not accept the stated cartridge size.
Customer reviews on Amazon
- 5 stars
78% 78% - 4 stars
12% 12% - 3 stars
6% 6% - 2 stars
1% 1% - 1 star
3% 3%
Customer feedback is broadly positive about perceived filter quality, function, water results, and installation. Buyers report mixed experiences with filter life and value, while some raise cleanliness concerns. These experiences are relevant when weighing a replacement set with stage-specific capacity claims, but do not establish how long it will last in a particular water supply.
Positive themes
- Customer feedback describes the filters as good quality and effective, with some users reporting clearer, drinkable well water.
- Installation is described positively in the supplied feedback.
Negative themes
- Some customers express concerns about cleanliness.
Mixed feedback
- Feedback is mixed on filter life and value for money.
Frequently asked questions
Which systems is this replacement pack listed for?
The listing names iSpring WGB32BM and WHO32BM compatibility and describes a 20-inch by 4.5-inch cartridge size. Confirm the housing requirements for your system before ordering.
Does this filter reduce total dissolved solids?
No. The listing says these whole-house filters do not reduce TDS and retain minerals. It points buyers seeking TDS removal toward an RO system.
How long do the cartridges last?
The listing gives up to 100,000 gallons for the first and second stages and up to 12 months for the carbon filter. It separately states 50,000 gallons for iron filtration at 3.0 ppm iron, so lifespan varies by stage and water conditions.
What water conditions does the manufacturer specify?
The listed operating range is 25 to 80 psi, 40-100 ºF, and pH 6 - 9. The listing gives iron and manganese reduction limits of 3.0 ppm and 1.0 ppm respectively, and advises other treatment for very high levels.
Alternative options
iSpring Whole House Water Filter System, Reduces Iron, Manganese, Chlorine, Sediment, Taste, and Odor, 3-Stage Iron Filter Whole House, Model: WGB32BM
$825.99
iSpring WGB32B 3-Stage Whole House Water Filter System w/ 20-Inch Sediment and Carbon Block Filters
$659.00
iSpring Iron, Mangaese Whole House Water Filter System Also Eliminates Chlorine, Taste, and Odor, 2-Stage Commercial-Grade 20" x 4.5" Industry Standard-Sized Filters, 1" Inlet/Outlet, Model: WGB22BM
$545.00
iSpring Whole House Water Filter System, Reduces Sediment, Iron, Hydrogen Sulfide, PFAS, Lead, Chlorine, Chloramine, Manganese, 3-Stage Whole House Water Filtration System, Model: WGB32B-MKS
$1,042.99
iSpring F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White
$20.99
iSpring WGB21BM 2-Stage Whole House Water Filtration System, 10” x 4.5” Carbon Block and Iron & Manganese Reducing Filters, 1" Ports
$420.90
iSpring WGB22B 2-Stage Whole House Water Filtration System w/ 20-Inch Sediment and Carbon Block Filters
$498.00
iSpring F3WGB32B 4.5" x 20" 3-Stage Whole House Water Filter | Reduces up to 99% Chlorine, Sediments, Taste, and Odor, Industry-Standard Water Filter Fits WGB32B & WHO32B
$178.00
iSpring WGB21B 2-Stage Whole House Water Filtration System, 50000 Gallons | SGS-Tested CTO Filter, Reduces up to 99% Chlorine, Bad Taste, and Odor, 1" inlet/outlet, 10" x 4.5", No power needed
$249.00
iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems, Without RO Membrane
$98.00
iSpring F19K75 NSF Certified 2-Year Replacement Filter Set for 6-Stage Reverse Osmosis Systems, Alkaline Mineral Filter, 19-Count, Long-Lasting Purification
$208.00
iSpring RCC7AK-BN NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink Patented Top-Mounted Faucet Design for Easy Installation
$362.00