Replacement Filters for the Universal 5-Stage RO (fits most) Reverse Osmosis System
Universal · 5-Stage Reverse Osmosis
Replacement Filters for the Universal 5-Stage RO (fits most) 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: iSpring · RCC7 · RCC7AK · APEC · ROES · Express Water · universal 5 stage · standard RO
✓ Best value — replace everything at once
IPW Universal 5-Stage Set (50 GPD · ¼" NPT)
$45.99
5µm sediment + 2 carbon blocks (10" × 2.5") + 50 GPD 1812 membrane + 10" × 2" inline post-filter. Also sold in 75 or 100 GPD, and 1/4" or 3/8" quick-connect.
🛒 Add the complete set to cartFilters by stage
Buy the whole set above, or replace stages individually below.
5
Inline post-carbon polish
10" × 2" coconut GAC · ¼" female NPT
ICF-10 — inline GAC, ¼" NPT — $7.99
Push-fit ends instead? ICF-10Q — ¼" quick-connect — $7.99
When to replace
🪣 Sediment & carbon: every 6–12 months🥤 Inline post-filter: every 12 months💧 RO membrane: every 2–3 years
✓ Fits standard 5-stage RO systems with 10" × 2.5" housings, an 1812 membrane and a 10" × 2" inline post-filter — not sure? call (714) 541-6600.
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.
Universal 5-stage RO filter FAQ
Will these filters fit my 5-stage RO system?
They fit most standard 5-stage systems that use three 10" × 2.5" pre-filter housings, a standard 1812 membrane housing and a 10" × 2" inline post-filter. Measure your old cartridges first. Tankless and twist-lock systems use different cartridges.
What is in a standard 5-stage RO filter set?
Stage 1 is a 5 micron sediment filter. Stages 2 and 3 are carbon filters that remove chlorine. Stage 4 is the RO membrane. Stage 5 is an inline carbon post-filter that polishes taste.
How often should I change 5-stage RO filters?
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.
Should I get the NPT or quick-connect inline filter?
Look at the ends of your old inline filter. If it has threaded fittings you can move over, pick ¼" NPT. If the tubing pushes straight into the filter, pick the quick-connect size that matches your tubing.
All replacement filters by system · Universal 4-stage RO · iSpring RCC7 · APEC ROES-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.
