Replacement Filters for the Culligan H-52 / H-53 Reverse Osmosis System
Culligan · 4-Stage Reverse Osmosis
Replacement Filters for the Culligan H-52 / H-53 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 H-52 · H-52 · H-53 · Culligan H-53
✓ Routine filter change — all 3 filters, no membrane
Culligan H-52/53 3-stage filter set
$29.99
5µm sediment + coconut carbon block + inline GAC post-filter. Fits the Culligan H-52 and H-53.
🛒 Add the filter set to cartMembrane due too (every 2–3 years)? Get the filter set with 36 GPD membrane — $49.99.
Filters by stage
Buy a set above, or replace stages individually below.
When to replace
🪣 Sediment & carbon: every 6–12 months🥤 Inline post-filter: every 12 months💧 RO membrane: every 2–3 years
✓ Guaranteed to fit your Culligan H-52 and H-53.
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.
Culligan H-52 / H-53 filter FAQ
What filters does the Culligan H-52 use?
Four stages: a 5 micron sediment pre-filter (CAC-SED-5), a 10 micron coconut carbon block (SC1216110, 1.9" × 11.62"), a 36 GPD RO membrane (TW30-CAC-36) and a 6" inline GAC post-filter with ¼" quick-connects (Omnipure K2333-JJ). The 3-stage filter set has all three filters in one box.
Do the H-52 and H-53 take the same filters?
Yes. The Culligan H-52 and H-53 use the same sediment, carbon block, membrane and inline post-filter, so the same sets fit both.
How often should I change the filters on a Culligan H-52?
Replace the sediment and carbon filters every 6 to 12 months and the inline post-filter about once a year. The membrane usually lasts 2 to 3 years. Change sooner if flow drops or the water starts to taste off.
Will Culligan AC-30 filters fit my H-52?
No. The AC-30, AC-15 and AC-50 use different cartridges. See all models on our Culligan replacement filters page, or call (714) 541-6600 and we'll match it.
All replacement filters by system · Culligan replacement filters · Culligan AquaCleer (AC-30 / AC-15) · Culligan AC-50
Compatibility reference only. Photos of complete systems shown on this page are provided to help you identify your unit and confirm that our filters fit. All brand names, model numbers, and product images are the property of their respective owners; Isopure Water (IPW Industries Inc.) is not affiliated with, sponsored by, or endorsed by these manufacturers. We sell compatible replacement filters and parts — not the branded systems pictured, unless a system is separately listed for sale on our store.
