Replacement Filters for the iSpring WGB22B 2-Stage Whole-House System
iSpring WGB22B
✅ Best value — replace everything at once
IPW 2-Stage Big Blue Set — fits standard 20"×4.5" housings
✓ Guaranteed to fit your iSpring WGB22B
📋 Typical replacement: sediment every 3–6 months · carbon every 6–12 months
1
Sediment PP
20×4.5 Big Blue
Replaces OEM FP25B
2
CTO carbon block
20×4.5 Big Blue
Replaces OEM FC25B
Not sure this is your system? Use the Isopure Water Filter Finder → Match by system name, by the part number on your cartridge, or by photo.
