99% of
contaminants.
Gone.
Reverse osmosis pushes water through a semi-permeable membrane that blocks lead, arsenic, nitrates, PFAS, and pharmaceuticals. The purest drinking water you can get at home.
99%
Lead removed
99%
Arsenic eliminated
97%
Nitrates removed
95%+
PFAS blocked
$600+
Saved vs. bottled water per year
5
Filtration stages
What standard filtration misses
Lead. Arsenic. PFAS.
RO removes them all.
Independent third-party tested
of lead removed at the point of use
99%
of arsenic eliminated per NSF certification
99%
of nitrates and nitrites removed
97%
of PFAS per-and polyfluoroalkyl substances removed
95%+
saved per year compared to buying bottled water
$600+
TDS reduction, dissolved solids effectively gone
99%
How It Works
5 stages. 99% removal.
Click any stage to see exactly what it targets and why it matters.
Stage detail
Stage 4, 0.0001 micron pore
RO Membrane
The core of the system. Water is forced through a semi-permeable membrane with pores measured in nanometers. 99% of dissolved contaminants, lead, arsenic, PFAS, nitrates, cannot pass through.
What it removes
How 5-stage reverse osmosis
delivers pure water.
Pre-filtration removes sediment and chlorine
Water first passes through a sediment filter and two carbon stages that remove particles, chlorine, and chloramines, protecting the delicate RO membrane from damage.
The RO membrane blocks 99% of contaminants
Water is forced through a semi-permeable membrane with pores measured in nanometers. Lead, arsenic, nitrates, PFAS, heavy metals, and most pharmaceuticals cannot pass through.
Post-carbon polishing delivers perfect taste
A final carbon stage removes any remaining trace tastes or odors before water flows to your dedicated drinking faucet, cleaner than most bottled water brands.
Our RO systems.
From under-sink drinking water to whole-home RO protection.
5-Stage Reverse Osmosis
Under-sink 5-stage RO system with sediment, carbon, and membrane filtration plus post-carbon polish. The most comprehensive point-of-use drinking water system available.
5-Stage Reverse Osmosis
Under-sink 5-stage RO system with sediment, carbon, and membrane filtration plus post-carbon polish.
4-Stage Reverse Osmosis
Compact 4-stage under-sink RO system for homes with limited cabinet space.
Alkaline Reverse Osmosis
The 5-stage RO system with an added alkaline remineralization stage.
Whole-Home Reverse Osmosis
Commercial-grade whole-home RO system that delivers reverse osmosis water to every tap, shower, and appliance.
Inside the Reverse Osmosis: every part explained
Inside Reverse Osmosis. Four cartridges in a row, a membrane at the heart of them, and a storage tank feeding its own faucet. Keep scrolling to walk the path your drinking water takes. 5-stage filtration process. 99% TDS reduction. NSF/ANSI 58 certified.
Sediment filter. A 5-micron polypropylene filter captures physical particles before they reach the carbon stages. Without this stage, sediment clogs downstream media and destroys the membrane prematurely. Sand and dirt. Rust particles. Physical debris.
Carbon block pre-filter. Activated carbon removes chlorine and chloramines, oxidants that degrade the RO membrane on contact. This stage is what makes the membrane's multi-year lifespan achievable. Chlorine and chloramines. VOCs. Chemical tastes.
The RO membrane. Water is forced through a semi-permeable membrane with pores measured in nanometers. 99% of dissolved contaminants, lead, arsenic, PFAS, nitrates, cannot pass through. Lead 99%. Arsenic 99%. Nitrates 97%. PFAS 95%+.
Post-carbon polish. A final activated carbon stage removes any remaining trace tastes or odors before water flows to your dedicated faucet. This is what makes RO taste noticeably better than most bottled water. Residual tastes. Trace odors. Final impurities.
Water at its own tap. Every stage in sequence, then a storage tank holding it ready. The result is cleaner than most bottled water brands, on demand at a dedicated drinking faucet. Dedicated faucet included. Storage tank. Installed by Aqua Otter.
“Our water tastes incredible now, better than bottled. We stopped buying cases of water the week it was installed. The quality is unbelievable for what comes right out of our tap.”
Val Fowler
Google Review, 5-Stage Reverse Osmosis
Where we install reverse osmosis systems
in Indiana, Michigan, and beyond.
Every city has its own water profile. Click your city for the local water report, real hardness numbers, and what we typically install in your zip code.
Indiana
14 citiesMichigan
9 citiesOhio
1 cityKentucky
1 cityTennessee
1 cityNorth Carolina
1 cityDon't see your city? We cover surrounding metros from each of our regional offices. Browse the full coverage map.
View all service areasTest your water.
See what RO removes.
Free in-home water test. We show you exactly what is in your water before recommending a system.
Get Your Free Water Test