Replacement Filters for the Geekpure RO6 (6-Stage Alkaline, 75 GPD) Reverse Osmosis System
Geekpure · 6-Stage Reverse Osmosis
Replacement Filters for the Geekpure RO6 (6-Stage Alkaline, 75 GPD) Reverse Osmosis System
Every filter your system needs — stage by stage — using IPW house-brand cartridges that fit the standard 10" housings and cost a fraction of the OEM parts.
Also fits: Geekpure RO6
✓ Routine filter change — 5 filters, no membrane
Geekpure RO6 6-stage filter set
$59.99
Sediment + GAC + carbon block + inline post-carbon + alkaline pH+ filter. Built for the Geekpure 6-stage 75 GPD alkaline system.
🛒 Add the filter set to cartMembrane due too (every 2–3 years)? Get the 6-filter set with 75 GPD membrane — $89.99.
Filters by stage
Replace each stage with the exact IPW part below.
1
Sediment pre-filter
5µm polypropylene · 10" × 2.5"
IPW 5M-SED-10×2.5 — $3.50
Replaces: Geekpure RO6 stage 1 sediment
2
GAC carbon
granular activated carbon · 10" × 2.5"
IPW UDF-10 GAC carbon — $7.99
Replaces: Geekpure RO6 stage 2 GAC
3
Carbon block
coconut carbon block · 10" × 2.5"
IPW CBC-10-5 carbon block — $8.99
Replaces: Geekpure RO6 stage 3 carbon block
4
RO membrane
75 GPD thin-film composite
TFCK-1812-75 — 75 GPD membrane — $36.99
Replaces: Geekpure RO6 75 GPD membrane
5
Inline post-carbon polish
coconut GAC inline · ¼" NPT threaded
IPW AICRO — inline GAC, ¼" NPT — $8.00
Replaces: Geekpure RO6 stage 5 post-carbon (reuse your elbow fittings)
6
Alkaline / remineralization
10" × 2" alkaline remineralization inline · ¼" QC
Replaces: Geekpure RO6 stage 6 alkaline pH+
When to replace
🪣 Sediment & carbon: every 6–12 months🥤 Post-carbon & alkaline: every 12 months💧 RO membrane: every 2–3 years
✓ Fits the Geekpure RO6 with standard 10" × 2.5" housings and an 1812 membrane — 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.
Geekpure RO6 filter FAQ
What filters does the Geekpure RO6 use?
Six stages: a 5 micron sediment filter, a GAC carbon filter and a carbon block (all 10" × 2.5"), a 75 GPD 1812 RO membrane, a 10" inline post-carbon and a 10" inline alkaline pH+ filter. Our 5-filter Geekpure set covers every stage except the membrane.
How often should I change the Geekpure RO6 filters?
Change the sediment, GAC and carbon block every 6 to 12 months. Change the post-carbon and alkaline filter about once a year. The membrane usually lasts 2 to 3 years.
What does the alkaline stage do?
It runs RO water through mineral media to add back calcium and magnesium and raise the pH. Our IL-10SC-AK-EZ14 uses Corosex, calcite and mineral ceramic balls with ¼" quick-connects.
Do Geekpure RO5 filters fit the RO6?
Stages 1 to 5 are the same type. The RO6 adds the alkaline stage at the end. If you are not sure which model you have, call (714) 541-6600 and we will match it.
All replacement filters by system · Geekpure RO5 · NU Aqua Platinum 6-Stage Alkaline · APEC ROES-PH75
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.
