Replacement Filters for the Global Water RO (3 / 4-stage) Reverse Osmosis System
Global Water · 4-Stage Reverse Osmosis
Replacement Filters for the Global Water RO (3 / 4-stage) 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: Global Water · GlobalWater · GWFILTERS · GWRO · Global Water RO
✓ Best value — replace everything at once
Global Water Complete Set with RO membrane — best value
$119.99
Sediment, carbon block and post-carbon twist-in filters plus an RO membrane, for Global Water RO coolers.
🛒 Add the complete set to cartPrefer genuine? Get the Global Water GWRO 4-stage set — $119.00. 3-stage filtered (F) cooler? Get the GWFILTERS 3-stage set — $94.00.
Filters by stage
Buy the whole set above, or replace stages individually below.
3
RO membrane
50 GPD 1812 TFC — match the size of your old membrane
4
Post-carbon polish
Global Water twist-in post-carbon (ETTOF)
When to replace
🪣 Twist-in filters: every 6–12 months💧 RO membrane: every 2–3 years
✓ Fits Global Water coolers that use ET twist-in filters. Not sure about the membrane size? 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.
Global Water RO filter FAQ
What filters does a Global Water RO cooler use?
Four stages: a sediment filter, a carbon filter, an RO membrane and a carbon post-filter polish. The twist-in filters are Global Water ETSF (sediment), ETCF (carbon block) and ETTOF (post-carbon).
What is the difference between 3-stage and 4-stage Global Water coolers?
Filtered (F) models use the three twist-in filters only. RO models add a reverse osmosis membrane. The three twist-in filters are the same on both, so the GWFILTERS set fits either.
How often should I change the filters?
Change the twist-in filters every 6 to 12 months, sooner if flow slows. The RO membrane usually lasts 2 to 3 years.
Which membrane do I need?
The membrane listed above is a 50 GPD 1812. Check the size and GPD on the label of your old membrane before you order, or call (714) 541-6600 and we will match it.
All replacement filters by system · Universal 4-stage RO · 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.
