iSpring WGB32BM 3-Stage Whole House Iron and Manganese Filter review
Iron and manganese filter. Plumber recommended if you are not comfortable with this install. Skill and code, not a preference. No third-party certification on record. Claims below are manufacturer-reported.
What it removes
| Contaminant | Evidence | Stated reduction | Scope |
|---|---|---|---|
| Iron | Manufacturer-reported | not stated | |
| Manganese | Manufacturer-reported | not stated | |
| Chlorine (residual) | Manufacturer-reported | 99% |
Certified is an NSF, WQA, or IAPMO listing for that claim. Manufacturer-reported reduction for iron. Not NSF-certified for iron.
Iron and manganese staining at the main.
Manufacturer says it can go before or after a softener (slightly better after); for resin protection install upstream. Stage 1 sediment cartridge is the prefilter.
20 x 4.5 in housings, 1 in NPT, 15 GPM. Stage 1 5-micron sediment, stage 2 CTO carbon block, stage 3 FM25B catalytic iron/manganese cartridge. Manufacturer: reduces iron max 3.0 ppm to 0.01 ppm and manganese max 1.0 ppm to 0.01 ppm; iron stage rated 50,000 gal at 3.0 ppm iron, sediment/carbon 100,000 gal; pH 6-11; up to 99% chlorine. For iron > 3 ppm iSpring points to WCFM400K/500K. Replacement set F3WGB32BM $125.99 on Amazon ($159.99 manufacturer) -> annual est. $126. Not in NSF database; no certification recorded.