iSpring WHO32B Whole House Water Filter System, Horizontal Housings for Ease Filter Replacement, Reduces Chlorine, Sediment, Odors, Commercial-Grade 3-Stage 20"x4.5" Industry Standard Filters
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- 0-Gravity Slide In-out System: No more heavy lifting, upgraded from WGB series, the WHO series whole house water filter systems feature horizontal housing system with built-in drain valve, allowing filter cartridges to be slide in & out horizontally and effortlessly.
- No More Guesswork & Overtightening: WHO series whole house water filtration systems feature Seal Mark, simply align the logo for the perfect seal, helping prevent overtightening and damaging the O-ring.
- Commercial-Grade High Capacity Filtration: With certified industrial standard 20′′ x 4.5′′ so called "jumbo" filter cartridges, delivering clean, safe water at up to 15 GPM, lasting up to 100,000 gallons or 12 months, reducing chlorine, sediments, rust, pesticides, VOCs, odors and 1000+, guaranteed.
- Easy Placement & Installation: Made possible by freestanding all-metal frame, standard 1' FNPT inlet/outlet, push-in quick-connect fittings, double O-rings on housings, and step-by-step YouTube guides.
- Industry-Standard Filters: Comparing to customized proprietary filters, iSpring WHO series uses 20" x 4.5" industrial standard water filter cartridges - no obligation, widely available, and more cost-effective. The filters are individually wrapped to maintain peak performance - remember to unwrap before installing. Search for "F3WGB32B" or "B0779G2676" for replacement filter pack.
- Trusted Legend US Brand: Founded in 2007, iSpring serves millions of homes and businesses across 21 countries - and growing.
- Pro Support by True Human Agent: Register online to activate your lifetime tech support - our teams in Atlanta GA and 7 global locations are happy to help.
- TDS-Friendly System: Our whole house water filters retain healthy minerals for balanced water. Choose iSpring whole house RO system if full TDS removal is desired.
Estimated shipping
Select a product to estimate shipping.Multi-layer filtration for fewer clogs and minimal pressure loss.
Specially designed to remove sediments, dust, sand, large particles, silt, dirt, and rust.
iSpring FC25B carbon block water filter uses premium coconut shell carbon and advanced fabrication for optimal efficiency and longevity.
It filters up to 100,000 gallons (or lasts up to 12 months), removing up to 99% of chlorine, as well as color, cloudiness, and various tastes and odors from water.
Do I still need a water softener if my water is hard?
Yes. Our WHO32B whole house water filter system does not reduce hardness. It is recommended to install a water softener, such as the iSpring WCS50KG model, if your TDS level is above 300 ppm.
What contaminants can this system remove?
Turbidity, visible particulate matter, sand, silt, dirt, rust, chlorine, taste, odor, THMs, VOCs, chemicals, and more.
Can I install this system outdoors?
Install indoors in a well-ventilated area, shielded from wind and rain, away from direct sunlight and heat. Consider water leakage protection. For outdoor installation, ensure insulation for frost, sun, and waterproofing for both unit and pipes.
How often should I replace the filter cartridge, and how will I know when it’s time?
iSpring filter cartridges typically last up to 12 months or filter up to 100,000 gallons, depending on your water quality and usage.
What are the product dimensions?
The system measures 29.7" H × 9.1" W × 25.5" L.
Specifications
Product details



| Main Specification | |
|---|---|
| Included Components | Manual or 1 Whole House Water Filtration System or 3 filters |
| Manufacturer | iSpring |
| Unit Count | 1 Count |
| Filter Life Cycle | 12 months |
| Brand | Ispring |
| UPC | 810004178069 |
| Number of Items | 1 |
| Purification Method | Activated Carbon |
| Capacity | 100000 gallons |
| Model Name | WHO32B |
| Package Information | Housing |
| Installation Type | Freestanding |
| Special Feature | Multi Stage Filtrartion |
| Technical Details | |
| Part Number | WHO32B |
| Maximum Flow Rate | 15 gpm |
| Item details | |
| Model Number | WHO32B |
| Item Type Name | WHO32B |
| Others | |
| Product Type | WHO32B |
| Other Special Features of the Product | Multi Stage Filtrartion |
| Container Type | Housing |











