iSpringAmazon ASIN: B01FI3BLYM

iSpring WGB32BM Iron and Manganese Filter

Price TierTypically $450–$650

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★Source-checked product profile

Amazon product linkAmazon ASIN: B01FI3BLYM

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iSpring product profileEvidence checked October 21, 2026

iSpring WGB32BM Iron and Manganese Filter

Three-stage whole-house cartridge system for tested iron up to 3 ppm and manganese up to 1 ppm.

Own this filter? Save to My Water

Purchase RangeTypically $450–$650

Est. Annual Filter CostTypically $140–$240 / yr

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Buying Decision Summary

iSpring lists the WGB32BM for iron up to 3 ppm and manganese up to 1 ppm. It uses a sediment cartridge, a carbon cartridge and an FM25B iron/manganese cartridge. The listed peak flow is 15 GPM. It does not soften water, treat bacteria or carry a hydrogen-sulfide claim. Water above the maker limits needs a different system sized from a lab report.

🔬Documented Performance & Buying Metrics

PFAS / PFOANo model-specific PFAS claim listed

Lead & Heavy MetalsNo certified lead claim listed

TDS ReductionNot designed to lower TDS

Dispensing Flow Rate15 GPM listed peak flow

Pump / SoundNo pump or motor

Documented Treatment Targets (4 Target Contaminants)

✓Iron & Manganese✓Chlorine (Free Chlorine)✓Sediment, Rust, Sand & Turbidity✓VOCs (Volatile Organic Compounds)

📖In-Depth Buying Analysis

What the documents establish

iSpring lists the WGB32BM for iron up to 3 ppm and manganese up to 1 ppm. It uses a sediment cartridge, a carbon cartridge and an FM25B iron/manganese cartridge. The listed peak flow is 15 GPM.

The buying tradeoff

Maker lists iron treatment up to 3 ppm and manganese up to 1 ppm 15 GPM listed peak flow One-inch inlet and outlet Sediment, carbon and iron/manganese cartridges are separate It does not soften water, treat bacteria or carry a hydrogen-sulfide claim. Water above the maker limits needs a different system sized from a lab report.

What this product does not replace

Not for iron or manganese above the maker limits Does not soften water or treat bacteria

Sources for This Exact Model

iSpring WGB32BM specificationsmanufacturer · checked 2026-10-21 Amazon WGB32BM listingamazon · checked 2026-09-28

⚙️Technical Specifications & Dimensions

Core Filtration Specs

Exact product / variantiSpring WGB32BM Iron and Manganese Filter

Product listingAmazon ASIN: B01FI3BLYM

Treatment categorywhole house cartridge

Certification recordNo finished-system certification claimed

Evidence checked2026-10-21

Physical Dimensions (HxWxD)28 in x 8 in x 24.5 in

Unit Weight55 lb

Plumbing & Installation Requirements

Feed Water Pressure25–80 psi

Electrical PowerNone

Cold Water Supply FittingConfirm fitting in current manual

Waste Drain ConnectionNo filter drain; service valves and bypass recommended

Renter Safe Installation?Homeowner / Semi-Permanent

🔄Stage-by-Stage Filter Schedule & Replacement Upkeep

5-Year Est: Not stated without usage and source-water assumptions

Stage	Cartridge Name	Media Type	Target Contaminants	Replacement Interval	Est. Cost
Stage 1	FP25B	5-micron polypropylene	Sediment and rust	6–12 months, based on water and pressure loss	Check current cartridge range
Stage 2	FC25B	Carbon block	Chlorine, taste and odor	6–12 months	Check current cartridge range
Stage 3	FM25B	Catalytic iron and manganese media	Iron up to 3 ppm and manganese up to 1 ppm under maker conditions	Up to 50,000 gallons at 3 ppm iron	Check current FM25B range

✓Who Should Buy This System

✔Well-water homes with a lab report showing iron at or below 3 ppm and manganese at or below 1 ppm.
✔Maker lists iron treatment up to 3 ppm and manganese up to 1 ppm
✔15 GPM listed peak flow

✕Who Should Skip It (Consider Alternatives)

✖Not for iron or manganese above the maker limits
✖Does not soften water or treat bacteria

SpringWell WS vs iSpring WGB32BMCompare oxidation and backwash with cartridge replacement by iron load, sulfur, pump flow, service work, and budget.The Best Water Filters for ManganeseCompare manganese treatment by concentration, form, pH, flow, backwash needs, service, and health thresholds.The Best Water Filters for Sediment and TurbidityCompare particle size, flow, pressure loss, service work, and the boundary between sediment control and source repair.The Best Iron Filters for Well WaterMatch cartridge filtration, backwashing oxidation, or well remediation to iron form, concentration, flow, and service limits.The Best Water Filters for Well WaterMatch UV, softening, point-of-use RO, and pretreatment to exact well-test results, flow, and service limits.The Best Water Filters for VOCsCompare exact VOC claims, one-tap versus whole-home coverage, carbon capacity, and breakthrough monitoring.

❓Frequently Asked Questions About iSpring WGB32BM Iron and Manganese Filter

How is WGB32BM different from the base WGB32B?

WGB32BM replaces one carbon stage with an FM25B iron/manganese cartridge. Choose it for a tested iron or manganese problem within its limits, not simply for more filter stages.

Sources: Model specifications

How much iron and manganese does iSpring list for WGB32BM?

The maker lists up to 3 ppm iron and 1 ppm manganese. Water form, pH and flow still matter. Test first rather than treating staining alone as a measurement.

Sources: Model specifications

Will the FM25B iron cartridge last as long as the carbon cartridge?

Not necessarily. The maker gives 50,000 gallons at 3 ppm iron for FM25B. That is a different rating from its carbon cartridge. Source chemistry and loading affect changes.

Sources: Model specifications

Can WGB32BM replace a softener and well-water disinfection?

No. It does not remove hardness or serve as disinfection for unsafe well water. A well with several problems may need a treatment train, not one cartridge system.

Sources: Model specifications

Does WGB32BM need a backwash drain like a large iron tank?

This replaceable-cartridge format does not use an automatic backwash cycle. You trade that drain setup for cartridge work and space to open three housings.

Sources: Model specifications

When should I compare a backwashing well filter instead of WGB32BM?

If tests exceed its inlet limits or cartridge loading would mean frequent changes, compare a properly sized backwashing system. Your well pump must also support that system's cleaning flow.

Sources: Model specifications

⚔️How It Compares to Closest Alternatives

Alternative OptioniSpring WGB32B 3-Stage Whole-House Filter

iSpring WGB32BM Iron and Manganese Filter Advantage: Adds an iron/manganese cartridge; the base WGB32B is mainly a sediment and carbon system.

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