ECHO RO™ Tankless Reverse Osmosis Water Filter Machine
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ECHO RO
Reverse osmosis, without the tank.
Four stages of reverse osmosis in a frame only 4.25 inches deep. ECHO RO purifies water the moment you ask for it, reducing up to 99% of contaminants, and sends it to a dedicated tap at your sink.
No storage tank, no pressure bladder and nothing sitting in the cabinet for days.
- 99%contaminants reduced, up to
- 4filtration stages
- 1:1pure-to-drain ratio
- 4.25 indeep
Tankless by design
Every glass made fresh.
Conventional RO stores purified water in a tank that fills half the cabinet and sits still for days. ECHO RO makes water as you pour it.
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Nothing stored
Water is purified on demand and goes straight to the tap. No tank to go stale, no bladder to replace.
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Four stages
Sediment, carbon block, the RO membrane and a post-carbon polish.
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1:1 efficiency
About a gallon to drain per gallon of drinking water, versus 3:1 or 4:1 for older RO systems.
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Twist to change
Bayonet cartridges quarter-turn out and in. No wrench and no shut-off.
How it filters
Four cartridges, in order.
Each stage hands cleaner water to the next. The membrane works at 0.0001 microns.
Stage 01 · 6–12 months
Sediment
Catches rust, silt and particulate, protecting everything downstream.
Stage 02 · 6–12 months
Carbon block
Takes out chlorine, chloramine and the taste and odor compounds that come with municipal treatment.
Stage 03 · 2–3 years
RO membrane
At 0.0001 microns, dissolved lead, fluoride, nitrates, arsenic and other heavy metals stay on the reject side.
Stage 04 · 12 months
Post carbon
A final polish on the way to the faucet, so the water tastes clean and neutral.
The machine
Slim enough to forget it's there.
17.75 inches wide, 16 tall and only 4.25 deep. It stands against the back of the cabinet and leaves the rest of the shelf free.
On-demand purification
Water is made as it is poured, so nothing sits in a tank between glasses.
1.2 L/min flow
Fast enough to fill a bottle or a pot without waiting.
Digital display
Shows status and the life of each cartridge, so replacements happen on schedule.
Bayonet cartridges
Four twist-in filters, accessible from the front.
What comes out
Up to 99% of what you'd rather not drink.
Municipal water arrives treated, not pure. Reverse osmosis removes the dissolved contaminants a carbon filter alone passes through.
- Chlorine and chloramine
- Lead
- Fluoride
- Heavy metals
- Nitrates and sulfates
- Total dissolved solids
- Microorganisms
- Taste and odor
Installation
Under the sink, at the tap you choose.
It tees off the cold supply and runs to a dedicated faucet in a spare countertop hole. Most kitchens take about two hours; a plumber can do it in thirty minutes.
- LocationUnder the sink
- ConnectionCold supply tee
- DrainSaddle valve
- PowerStandard outlet
- Cabinet depth5 in clear
Certifications
Tested. Certified. Documented.
Built around NSF-certified reverse osmosis components.
Tech specs
- Filtration
- 4-stage reverse osmosis
- Contaminant reduction
- Up to 99%
- Membrane
- 0.0001 micron
- Pure-to-drain ratio
- About 1:1
- Flow rate
- 1.2 L/min
- Storage
- Tankless, on demand
- Dimensions
- 17.75 W × 16 H × 4.25 D in
- Weight
- 29 lb
- Faucet finishes
- Chrome, stainless, matte black, or no faucet
- Power
- Standard household outlet
- Warranty
- 5-year limited
Questions? Answers.
What does tankless actually change?
Conventional RO fills a pressurized storage tank, typically a 3-gallon sphere that takes most of the cabinet and holds water for days. ECHO RO purifies on demand, so there is no tank to store, sanitize or replace.
Do I need a separate faucet?
Yes. RO water runs to a dedicated tap in a spare hole beside your main faucet. Choose a finish, or the no-faucet option if you already have a suitable one.
How much water goes to drain?
About a gallon to drain per gallon of drinking water. Older RO systems commonly run 3:1 or 4:1.
How often do cartridges need changing?
Sediment and carbon pre-filters typically every 6–12 months, the post carbon about yearly, and the membrane every 2–3 years, depending on your water. All four twist out with a quarter turn.
Does RO remove minerals too?
Yes. Reverse osmosis removes dissolved solids, including beneficial minerals. Many people add mineral drops or run an Echo hydrogen machine after it; hydrogen infusion does not depend on mineral content.
Can I pair it with the ECHO Flow or H2?
Yes, it is a common setup. Run the RO first and the hydrogen machine after it, so the hydrogen cell receives purified water.
Contaminant reduction, cartridge life and drain ratio vary with source water chemistry, pressure and usage. A dedicated faucet is required.