800.880.9383
Mon - Fri 9am - 5pm PT
RO Sets
RO Sets keep reverse osmosis maintenance simple by bundling the parts you replace most often into one easy purchase. Instead of hunting for each cartridge and hoping sizes match, you can refresh your system with a set built to work together. Many options include common 4-stage and 5-stage combinations, plus membranes rated around 50, 75, or 100 GPD to fit different households. Choosing a set also helps you plan ahead, so clean water stays consistent between service dates.
Signs of wear often show up slowly, like reduced flow, off taste, or more frequent tank refills. A complete set lets you service everything in one session, which keeps stages balanced and makes replacement dates easier to track.
About RO Sets
Reverse osmosis systems rely on multiple stages to reduce sediment, chlorine taste, and other unwanted impurities before water reaches your faucet. RO replacement filter sets typically combine pre-filters like sediment and carbon with post-filters for polishing, and some kits include quick-connect fittings for faster swaps. Buying a set can save money compared to ordering items one by one, and it reduces the risk of missing a piece during a scheduled change. Options can support popular styles like drop-in cartridges or standard housings, so the right fit is easier to find.
Why Choose iFilters for RO Sets?
iFilters makes it straightforward to shop RO Sets by showing key details like kit stages, membrane capacity, and compatible connection types. Auto Ship is available on many items, which helps you keep a predictable replacement rhythm without last-minute orders. Broad availability across brands and Smart Pack-style kits gives you choices for routine refreshes or one-year replacement bundles. Helpful product ratings and sorting tools make it easier to compare best sellers and find a set that matches your existing reverse osmosis system. Fast shipping options help you get back to clean water without delays.
Shop RO Sets online today!
Sale
$39.99
$36.00
Hydronix Reverse Osmosis (RO) Replacement Filter Set – 5 Stage Kit (50 GPD Membrane, 5 Pcs) Compatible with Standard 5-Stage RO Systems The Hydroni...
View full detailsSale
$39.99
$36.00
Sale
$47.99
$43.20
iFilters Smart Pack RO-100KIT – 5-Stage Reverse Osmosis Replacement Filter Set (100 GPD Membrane) High-Performance 5-Stage RO Filtration for Superi...
View full detailsSale
$47.99
$43.20
Sale
$54.50
$49.05
1 - 2 Year (14 filters) supply of RO Reverse Osmosis Filters. All filters are Premium NSF Certified Hydronix. This universal set s compatible with ...
View full detailsSale
$54.50
$49.05
Sale
$37.16
$33.45
4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard 4 Stage RO system. Sediment, CTO Carbon Block, M...
View full detailsSale
$37.16
$33.45
Sale
$24.99
$22.50
The Smart Pack Pre & Post Carbon Block RO Replacement Set is built to keep your reverse osmosis system doing what it does best: providing clean...
View full detailsSale
$24.99
$22.50
Sale
$35.94
$32.35
Your drinking water deserves precision filtration that you can trust. The Watts Premier Compatible 7-Pack 5-Stage RO Replacement Filter Kit provide...
View full detailsSale
$35.94
$32.35
