Replacement Filters for the Puricom PuROmax PC4 (4-Stage) Reverse Osmosis System
Puricom · 4-Stage Reverse Osmosis
Replacement Filters for the Puricom PuROmax PC4 (4-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: Puricom PC4 · PuROmax PC4
✓ Best value — one box replaces all 4 stages
IPW Universal 4-Stage RO Set (50 GPD)
$42.99 $53.47
Everything your Puricom PuROmax PC4 (4-Stage) needs in one box — sediment, carbon, 50 GPD membrane & inline. Standard 10" cartridges guaranteed to fit.
🛒 Add the complete set to cartFilters by stage
Buy the whole set above, or replace stages individually below.
1
Sediment pre-filter
5µm polypropylene · 10" × 2.5"
IPW 5M-SED-10×2.5 — $3.50
Replaces genuine OEM: Puricom sediment
2
Carbon block
coconut carbon block · 10" × 2.5"
IPW CBC-10-5 carbon block — $8.99
Replaces genuine OEM: Puricom carbon block
3
RO membrane
50 GPD thin-film composite
IPW TW-1812-50 — $32.99
Replaces genuine OEM: Puricom 50 GPD membrane
4
Inline post-carbon polish
coconut GAC inline · ¼" NPT threaded
IPW AICRO inline — $8.00
Replaces genuine OEM: Puricom T33 inline
When to replace
🪣 Sediment & carbon: every 6–12 months💧 RO membrane: every 2–3 years
✓ Guaranteed to fit your Puricom PuROmax PC4 (4-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.
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.
