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🚿 Elevate your home’s water game—pure, powerful, and perfectly filtered!
The iSpring FC25B is a high-capacity 20” x 4.5” whole house CTO carbon block water filter designed to remove up to 99% of chlorine, taste, odor, and other contaminants. It supports a strong flow rate of up to 15 gallons per minute, fits standard housings including iSpring WGB32B & WHO32B series, and uses premium coconut shell activated carbon for maximum filtration efficiency. NSF/ANSI certified and backed by lifetime US-based customer support, it ensures clean, great-tasting water without stripping healthy minerals.














| ASIN | B01M1197LW |
| Best Sellers Rank | #12,447 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Whole House Water Treatment Systems |
| Brand Name | iSpring |
| Capacity | 55.03 liters |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,230) |
| Global Trade Identification Number | 00662425080250 |
| Included Components | 1 Whole House CTO Carbon Block |
| Installation Type | Whole House |
| Item Dimensions L x W x H | 5.98"L x 5.98"W x 22.01"H |
| Item Type Name | Whole House CTO Carbon Block |
| Manufacturer | iSpring Water Systems |
| Material Type | Carbon Block |
| Maximum Flow Rate | 15 gpm |
| Model Name | High Capacity 20” x 4.5” Water Filter |
| Model Number | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | Chlorine Reduction, NSF certified |
| Part Number | FC25B |
| Power Source | Ac |
| Purification Method | Activated Carbon, Carbon Block |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 662425080250 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 125 °F |
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