Replacement Filters for the Isopure Water ISO-RO5 (PureValue 5EZ50) 5-Stage Reverse Osmosis System
Isopure Water · 5-Stage Reverse Osmosis
Replacement Filters for the Isopure Water ISO-RO5 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 the PureValue 5EZ50 · 5EZ50
✓ Best value — save $27.00 (37%) vs OEM
IPW Universal 5-Stage Set (50 GPD · ¼" NPT)
$45.99 vs $72.99 OEM kit
One kit replaces all five stages. Guaranteed to fit your ISO-RO5.
🛒 Add the complete set to cartPrefer name-brand parts? The PureValue 5EZ50 annual kit has Purtrex, Omnipure and a 50 GPD membrane — $72.99. Membrane not due? 4 filters, no membrane — $36.00.
Filters by stage
Buy the whole set above, or replace stages individually below.
1
Sediment pre-filter
5-micron spun polypropylene · 10" × 2.5"
IPW 5M-SED-10×2.5 — $3.50
Genuine OEM alternative: SUEZ Purtrex 93023 — $4.85
2
Carbon block pre-filter
5-micron coconut carbon block · 10" × 2.5"
IPW CBC-10-5 — $8.99
Genuine OEM alternative: Omnipure OMB934 — $11.41
3
Carbon block pre-filter (2nd)
5-micron coconut carbon block · 10" × 2.5"
IPW CBC-10-5 — $8.99
Genuine OEM alternative: Omnipure OMB934 — $11.41
4
RO membrane
50 GPD thin-film composite (TFC)
IPW TW-1812-50 — $32.99
Genuine OEM alternative: Filmtec TW30-1812 — $38.86
5
Inline post-carbon polish
10" × 2" coconut GAC inline · ¼" NPT threaded
IPW AICRO — $8.00
Genuine OEM alternative: Watts AICRO — $16.93
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 Isopure Water ISO-RO5 / PureValue 5EZ50.
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.
Isopure ISO-RO5 filter FAQ
What filters does the ISO-RO5 use?
Five stages, all standard sizes: a 5 micron sediment cartridge (10" × 2.5"), two 5 micron coconut carbon blocks (10" × 2.5"), a 50 GPD TFC membrane (1812 size) and a 10" × 2" inline GAC post-filter with ¼" NPT ports. The IPW universal 5-stage set has all five in one box.
Is the ISO-RO5 the same system as the PureValue 5EZ50?
Yes. The ISO-RO5 is sold under the PureValue 5EZ50 part number, so every filter and kit on this page fits both.
How often should I change the ISO-RO5 filters?
Change the sediment and both carbon blocks every 6 to 12 months and the inline post-filter every 12 months. The membrane lasts 2 to 3 years. Change sooner if flow drops or taste changes.
Will other 10-inch RO filters fit my ISO-RO5?
Any standard 10" × 2.5" sediment or carbon block fits the three pre-filter housings, and any 1812-size 50 GPD membrane fits the membrane housing. Not sure? Call (714) 541-6600.
All replacement filters by system · PureT RO550-905EZ · PureT RO550-905 · RO membranes
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.
