Replacement Filters for the Watts Premier RO-Pure (push-button, 1R-1Y-1B-1G) Reverse Osmosis System
Watts Premier · 4-Stage Reverse Osmosis
Replacement Filters for the Watts Premier RO-Pure (push-button, 1R-1Y-1B-1G) 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: Watts RO-Pure · Watts Premier RO-Pure · RO-Pure · RO Pure · Zero Pure · ZeroPure · Premier Zero Pure · 1R-1Y-1B-1G · Watts push button · Watts Premier push button · 105311 · 105351 · 105331 · 105341
✓ Best value — replace everything at once
IPW Branded RO-Pure 4-Pack Set — best value
$89.99
All four push-button cartridges: sediment (105311), carbon pre-filter (105351), 50 GPD membrane (105331) and GAC post-filter (105341). Replaces Watts 4-pack 531152.
🛒 Add the complete set to cartFilters by stage
Buy the whole set above, or replace stages individually below.
1
Sediment pre-filter
5µm sediment · RO-Pure push-button
IPW105311 — RO-Pure sediment — $13.68
Genuine OEM: Watts 105311 — RO-Pure sediment — $22.75
2
Carbon pre-filter
5µm carbon · RO-Pure push-button
Genuine OEM: Watts 105351 — RO-Pure carbon pre-filter — $33.08
3
RO membrane
50 GPD TFC · RO-Pure push-button
IPW105331 — RO-Pure 50 GPD membrane — $49.99
Genuine OEM: Watts 105331 — RO-Pure 50 GPD membrane — $131.28
4
GAC carbon post-filter
GAC carbon polish · RO-Pure push-button
IPW105341 — RO-Pure GAC carbon post — $22.96
Genuine OEM: Watts 105341 — RO-Pure GAC carbon post — $43.00
When to replace
🪣 Sediment & carbon pre-filters: every 6 months🥤 GAC post-filter: every 12 months💧 RO membrane: every 12 months (Watts schedule)
✓ Fits the Watts Premier RO-Pure push-button system — parts 105311, 105351, 105331 and 105341.
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.
Watts Premier RO-Pure filter FAQ
What filters does the Watts Premier RO-Pure use?
Four push-button cartridges: 105311 sediment, 105351 carbon pre-filter, 105331 50 GPD membrane and 105341 GAC carbon post-filter. Watts sells all four together as the 531152 4-pack.
How often should I change RO-Pure filters?
Watts says to change the sediment and carbon pre-filters every 6 months, and the GAC post-filter and membrane every 12 months. That is why the Watts one-year kit (531155) has two of each pre-filter, one post-filter and one membrane.
Will RO-Pure filters fit a Watts Kwik-Change WQC4RO?
No. The Kwik-Change uses its own quarter-turn cartridges. See the Watts Kwik-Change WQC4RO11 page.
Do you sell genuine Watts RO-Pure filters too?
Yes. Each stage above lists the IPW compatible cartridge and the genuine Watts part with the same part number. Call (714) 541-6600 if you are not sure which system you have.
All replacement filters by system · Watts RO & OneFlow replacement filters · Watts Kwik-Change WQC4RO11 · Watts Premier WP-4V
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.
