Replacement Filters for the Culligan AC-50 Reverse Osmosis System
Culligan · 4-Stage Reverse Osmosis
Replacement Filters for the Culligan AC-50 Reverse Osmosis System
Every filter your system needs — stage by stage — led by the IPW house-brand set that costs less than the OEM parts.
Also sold as: Culligan AC-50 · AC-50
✓ Best value — replace everything at once
Culligan AC-50 filter set + membrane
$59.99
Guaranteed to fit your Culligan AC-50.
🛒 Add the complete set to cartFilters by stage
Buy the whole set above, or replace stages individually below.
When to replace
🪣 Sediment & carbon: every 6–12 months💧 RO membrane: every 2–3 years
✓ Guaranteed to fit your Culligan AC-50 / Culligan AC-50.
Not sure this is your system? Use the Isopure Water Filter Finder → Match by system name, by the part number printed on your current filter, or by snapping a photo.
