Replacement Filters for the Pentair/Pelican PSE1800 3-Stage Whole-House System
Pentair/Pelican PSE1800
✅ Best value — replace everything at once
IPW 1-cartridge set — every replaceable stage in one order
✓ Guaranteed to fit your Pentair/Pelican PSE1800
📋 Typical replacement: sediment every 3–6 months · carbon every 6–12 months · tank media every 3–10 years
1
Sediment pre-filter cartridge
10×4.5 Big Blue
Replaces OEM 5-micron sediment (10x4.5)
2
Catalytic GAC carbon media tank (~5yr)
Tank media bed
Media bed — not a drop-in cartridge
3
NaturSoft TAC salt-free media tank (lifetime)
Tank media bed
Media bed — not a drop-in cartridge
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.
