Replacement Filters for the Express Water RO5DX Reverse Osmosis System
Express Water · 5-Stage Reverse Osmosis
Replacement Filters for the Express Water RO5DX (5-Stage) 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: Express Water RO5DX · RO5DX · Express Water 5-stage
✓ Standard 10" cartridges — guaranteed to fit
Express Water RO5DX (5-Stage) Replacement Filters
This system uses standard 10" cartridges and an 1812 membrane. Pick the exact part for each stage below.
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 genuine OEM: Express Water FLTSED2510CL5
2
GAC carbon
granular activated carbon · 10" × 2.5"
IPW UDF-10 GAC carbon — $7.99
Replaces genuine OEM: Express Water FLTGAC2510CL5
3
Carbon block
coconut carbon block · 10" × 2.5"
IPW CBC-10-5 carbon block — $8.99
Replaces genuine OEM: Express Water FLTACB2510CL5
4
RO membrane
50 GPD thin-film composite
IPW TW-1812-50 — $32.99
Replaces genuine OEM: Express Water FLTMEME50
5
Inline post-carbon polish
coconut GAC inline · ¼" quick-connect
Hydronix ICF-10Q inline — $7.99
Replaces genuine OEM: Express Water PAC (FLTSET08)
When to replace
🪣 Sediment & carbon: every 6–12 months💧 RO membrane: every 2–3 years
✓ Guaranteed to fit your Express Water RO5DX (5-Stage) — standard 10" cartridges & 1812 membrane.
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.
