Direct Flow Tankless On-Demand Reverse Osmosis Systems

Your Key Benefits

Being in a class of its own, Expert MOD600 is a high end water purification system that offers multiple advantages

Cleanest Water

R.O. treated water is free from chlorine, heavy metals, other dissolved solids and ions, bacteria and viruses, and even microplastics.

Beyond Bottled Water

The system delivers virtually unlimited amount of safe, clean and delicious water right at your sink, every day.

Take water off your grocery list!

Modern Innovative Technology

• Direct flow R.O. filtration in real time, no storage tank required
• Fully automatic operation
• Compact and modular

Fresh Flux

High, instantly available and sustained water flow and distinct freshness of water filtered in real time.

Never wait for a tank refill.

No more stale water from a tank.

Unbeaten Efficiency

Up to three times less water waste per gallon of filtered water due to 1:1 or better recovery rate.

Save on your every utility bill!

Lower Cost of Ownership

High efficiency rate leads to a less frequent filter change necessity.

The more you use your R.O. machine the more you save on maintenance!

This direct flow reverse osmosis water filtration system saves tons of water wasted per year and solves maintenance and water quality issues with tank based systems.

Read on and discover how you can carry out high level purification without such an economic and environmental impact.
The future of reverse osmosis is tankless.

Main Features

Proprietary water purification machine designed from ground up for best water quality, ease of use and low maintenance costs

Clean and safe drinking water right at your sink. No need to transport and dispose of bottled water any more.

Factory-preinstalled filters and membrane for faster and easier setup.

Compact and beautiful design.

Fully automatic operation:

just open the faucet and get clean water instantly;
automatic shut off and flush.

Powerful booster pump increases the inlet pressure to radically improve the R.O. process effectiveness.

Guaranteed performance even in low water pressure environments.

Automatic flush prevents the scale and debris buildup on the membrane outer surface: for peak performance and healthier membrane.

Idling protection: if you forget to turn off the pure water faucet and leave it on, say, overnight the pump bot will shut down the system automatically for you.

LED indicators: easily understand what the state of your R.O. machine is.

No mess, quick and easy filter change: for easy regular maintenance.

Quick fittings everywhere for easy tube connections.

Designer faucet included.

Advanced Prio® Pump Bot included.

A Game Changer:

Water Saving Machine with the Most Effective, 1:1 or better recovery

Direct flow scheme, high pressure reverse osmosis and high production membrane allowed to achieve the enormous reduction in the amount of water going down the drain during filtration.

Cut your expenses on utility bills and save planet Earth's water resources! Savings may become so significant that this reason alone may be a game changer for whole cities, not to say a single household.

Conventional R.O. units with a tank use a lot of water because they have low pressure and low production membrane. As a result, they recover only 5 to 20% of the water entering the system. The remainder is discharged as waste water.

For example, a conventional reverse osmosis system delivering 5 gallons (19 L) of treated water per day may discharge between 20 and 90 gallons (75–340 L) of waste water per day. This is having disastrous consequence for mega cities like Delhi where large-scale use of household R.O. devices has increased the total water demand of the already water parched National Capital Territory of India.

On the contrary, Expert MOD600 direct flow reverse osmosis system reaches 1:1 or even better recovery rate meaning that only 5 gallons or even less of waste water will go down the drain in the example above. This is 4 to 18 times less in precious water resources waste and associated costs.

5 Stage Filtration System

5-micron sediment poly block pre-filter to filter suspended particles such as dirt, sand, rust, etc.
Carbon block to reduce free chlorine, chloramines, chlorine taste and odor.

High-production 450gpd R.O. membrane element to reduce dissolved solids, metal ions, bacteria and viruses, and other suspended particles as small as 0.0001 micron.
Two-stage water conditioning combo post-filter.

K871

5 μm Sediment Poly Block Pre-Filter

Effective reduction of:

rust, dirts, sand and sediment
other contaminants*

K870

Coconut Carbon Block Pre-Filter

Effective reduction of:

dirts, sand and sediment
taste and odor, including chlorine taste and odor
other contaminants*

K858

High-Production (450gpd) R.O. Membrane Element

Effective reduction of:

suspended solids
dissolved ions
bacteria and viruses
other contaminants*

K880

Coconut Carbon Block and Remineralization Water Conditioning Post-Filter

improves taste and removes odor, remineralizes water*

Set Includes:

Advanced Booster Pump Box Unit with Auto-Flush
Multi-Stage Filtration Unit with High-Production R.O. Membrane
Designer Faucet
Installation Kit

What Makes It Special

Have a reason: R.O. machine that's perfectly engineered, environmentally, user friendly and remarkably effective and useful

Direct flow system for instantly available, high and sustained flow of filtered water.

Waste water saving — saves tons of waste water a year as compared to conventional systems.

High production membrane element (450gpd) to further minimize the cost of ownership.

Inlet water lack protection.

True R.O. high rejection rate membrane of genuine Toray sheet made in Japan.

Safe, quick and easy filter change due to separation of all electrical components from the user serviceable filtration unit.

A number of optional post-filters available: with carbon, with re-mineralization, with alkalization, with catalytic natural anti-bacterial schungite mineral for water conditioning and taste improvement.

Suitable for commercial applications (small restaurants, hotels, etc.).

Low noise.

Direct Flow Reverse Osmosis Benefits

Thanks to high production membrane and powerful pump this system doesn't require a storage tank. It's capable of producing on-demand the strong pure water flow in real time. Also, you enjoy better purification and less water pouring down the drain.

Freshness of water filtered in real time. No more stale water from a tank.

Tankless: space-saving, compact installation since tank is not needed.

Free up undersink space for all your kitchen cleaning supplies!

Better water purification quality due to improved contaminant rejection rate.

R.O. membrane works best when under high pressure.

Saves you money and Planet Earth’s water resources!

Typically, up to three times less water is wasted per gallon of filtered water, compared to the traditional tank systems. This is due to the much higher efficiency rate.

Virtually unlimited filtered water production.

While conventional systems with tanks are limited by the tank capacity, and require prolonged timeouts to refill the tank, a direct flow system is limited by the membrane filtration rate only.

Instant and sustained filtered water flow. It doesn’t depend on how full the tank is.

It also makes commercial application possible too.

Lower cost of ownership due to prolonged service life of pre-filters and membrane, what is in turn a result of higher efficiency rate: less water is treated overall by pre-filters and the membrane for each gallon of permeate produced.

This saves the capacity of pre-filters and ensures either less frequent change necessity or better purification.

Less number of components leads to better reliability and easier servicing.

Ultra Low Waste per 1 Gallon of Filtered Water

Expert MOD600 direct flow R.O. system saves you tons of waste water a year due to high efficiency rate. Refer to the detailed comparison below to see how this system saves money on your utility bill.

Values below are given per 1 gallon of purified water*.

	Conventional Tank R.O. System, No Pump	Conventional Tank R.O. System, with Pump	Conventional Tank R.O. System, with Pump, with Auto-Flush	Prio® Expert MOD600 Direct Flow, Tankless, R.O. System	Legend
Membrane Production Rating	50GPD	50GPD	50GPD	450GPD	higher is better
Permeate Flow¹, ml/min	80	140	140	900⁓1000	higher is better
Flow Restrictor, ml/min	300	300	300	440	neutral
Instant Recovery Rate	21.0%	31.8%	31.8%	67.2%	higher is better
Time to Recover 1 G, min	~47	~27	~27	~4	lower is better
Autoflush Time, s	0	0	18	18	neutral
Flush Flow, ml/min	0	0	1800	2200	neutral
Drain During Recovery, G	3.75	2.14	2.14	0.49	lower is better
Drain During Auto-Flush, G	0.00	0.00	0.14	0.17	neutral
Total Drain, G	3.75	2.14	2.29	0.66	lower is better
Drain To Permeate Ratio as Compared to That of Expert MOD600	5.65	3.23	3.45	1.00	lower is better
Efficiency Rate¹	21.1%	31.8%	30.4%	60.1%	higher is better
Rejection Rate², typical	90%	92%	92%	95%	higher is better

¹ For a conventional system with a tank the permeate flow is not constant and decreases gradually due to increasing back-pressure from an air-pressurized tank during each tank refill cycle. Actual efficiency rate for these systems often is even worse than indicated here. For direct flow system permeate flow is steady.

² For a conventional system, especially w/o pump, the rejection rate can be particularly worse than indicated here due to the use of LP or ULP membranes optimized for low inlet pressure environments and back pressure from a tank by sacrificing the rejection rate performance. In contrast, the Expert MOD600 system uses the true no-compromise R.O. high rejection rate membrane because it’s equipped with the powerful high-pressure pump and doesn’t suffer from a tank back pressure.

^* See the manual for conditions of use, important safety information and detailed installation instructions before use. All data apply to normal household use. Actual performance may vary.

Install in Five Easy Steps

Expert MOD600 is easy to set up using basic tools and included accessories.

1 Position the System.
This system naturally mounts under the kitchen sink but also can be installed near other points-of-use: in a cellar, garage or utility room. The unique feature of the system is a possible “split-installation”: install the pump box unit up to 50 feet away from the R.O. unit itself. You may place both units under your kitchen sink, or you may place the R.O. filtration unit under the kitchen sink near the faucet, and the pump box unit in a bathroom near the electrical outlet, cold water supply and drain pipes.

2 Install Adapter Ball Valve to Feed Water to the System.

3 Install the Filtered Water Faucet.
It can be installed in an existing hole of soap dispenser or water sprayer, or in a new hole in the sink or deck. An available on the market combo tap with built-in waterway for filtered water can also be used.

4 Install Drain Saddle on the Drain Pipe.

5 Connect the Tubes and Start Up.
All internal tubes are already factory pre-installed. You only need to connect few external tubes, such as water supply, faucet and drain tubes by following the enclosed chart.
Then turn on the system, make quick initial washing and start enjoying safe, clean and tasty water.

Connection Chart

Tip: Expert MOD600 R.O. System may also be used with an optional tank if you prefer! Storage tank can be added easily, at any time, even after installation of the system itself.

What's in the Box

(1) The auto-flush booster pump box unit

(1) The R.O. filtration unit

(1) Adapter ball valve (user configurable to ⅜” x ⅜” x ¼”, ½” x ½” x ¼” or ½” x ⅜” x ¼”)

(1) Teflon tape roll

(1) Faucet (depending on SKU and market)

(1) Drain saddle

(1) Wrench

(26 ft / 8 m) Water tubing ¼”

(1) ¼” x ¼” union check valve

(1) ¼” x ¼” x ¼” union tee fitting or Y-fitting

User’s guide

Technical Data

Operating requirements:

Minimum supply water pressure: 7.25 psi (0.05 MPa)
Maximum supply water pressure: 80 psi (0.55 MPa)
Minimum water temperature: 41 °F (5 °C)
Optimal water temperature: 59–77 °F (15–25 °C)
Maximum water temperature: 95 °F (35 °C) / up to 105 °F (40.5 °C) short-term
Ambient air temperature: 41–105 °F (5–40.5 °C)
Water source: tap water supply, chlorinated or non-chlorinated, bacteriologically safe
Supply water pH range: 4.0-11.0
Supply water turbidity: < 1 NTU
Supply water components: Hardness (CaCO₃) <180 mg/L ( <10.5 gpg), Iron <0.1 mg/L, Manganese <0.05 mg/L, Hydrogen Sulfide 0.00 mg/L
Maximum supply water TDS: 1000 ppm
Indoor use only
Electrical input: AC 100-240V 50/60 Hz
Electrical plug: US Type A / Europlug CEE 7/16
Maximum length of the line between the pump unit and the membrane (“split installation”): 50 ft (15 m) (purchase of extra tubing may be required)
Tubing: ¼”

Performance:

Performance of the appliance such as filtered water delivery rate, rejection rate, etc. is highly dependent on local conditions (inlet water pressure, temperature, TDS and degree of contamination, etc.) and R.O. system use pattern. Actual performance may vary.

Filtered water production rating: 450 gpd (1650 lpd) maximum
Filtered water delivery rate, nominal: 0.159–0.370 gpm (0.6–1.40 l/min), typical: 0.238–0.327 gpm (0.9–1.25 l/min)
Membrane rejection rate¹, typical: ≥90%
Recovery rate (system efficiency²), typical: ≥50%
Drain water flow restrictor: 300 cc (ml/min) nominal, up to 450 cc in working mode, open flow in flush mode.
Auto-flush duration: 18±5% s
Idling protection: 120 minutes
Power consumption: ≤60 W (working mode), ≤40 W (flush mode), ≤2 W (standby mode)

Weight and size:

Pump box unit:

Size (WDH), body only, excluding protrusions: 8.74 x 4.80 x 12.44” (222 x 122 x 316 mm)
Weight, without water and tubing: 8.6 lbs (3.9 kg)

R.O. filtration unit:

Size (WDH), body only, excluding protrusions: 13.46 x 4.92 x 14.80” (342 x 125 x 376 mm)
Weight, without water and tubing: 8.8 lbs (4.0 kg)

Shipping Weight: 20 lbs (9.5 kg)

Certification:

Fully CE certified and conforms to Directives and Standards 98/83/EC, 2006/42/EC, 2014/30/EU, 2014/35/EU, (EU) 2015/1787, EN 14652:2005+A1:2007, EN 13443-2:2005+A1:2007, EN 14898:2006+A1:2007, etc.

Warranty:

1 year limited warranty (+ local regulations if applicable)

¹ For all dissolved solids combined as measured by TDS or conductivity meter.

² Efficiency rating means the percentage of the influent water to the system that is available to the user as reverse osmosis treated water under operating conditions that approximate typical daily usage.

Expert MOD600

Taste Life

The Ultimate Prio®

Cleanest Water

Fun. Care. Love.

Your Key Benefits

Cleanest Water

Beyond Bottled Water

Modern Innovative Technology

Fresh Flux

Unbeaten Efficiency

Lower Cost of Ownership

About R.O. Filtration

Beyond Bottled Water Quality

How It Works

Main Features

A Game Changer:

Water Saving Machine with the Most Effective, 1:1 or better recovery

Like New Every Day!

If you’re still using bottled water for drinking today, you’ll be making a smart investment that saves you money in the long run and is better for the environment.Get better than bottled water quality without the bottle!

Already Got a Whole House Water Softener?

Zero Noise Operation Option

5 Stage Filtration System

K871

K870

K858

K880

Set Includes:

What Makes It Special

Get a Second Pure Water Line Option for Free

World’s First Filtration Split System

Direct Flow Reverse Osmosis Benefits

Innovative electronically controlled unit ensures fully automatic operation: just open and close the faucet and everything else will be performed automatically. Get your filtered water instantly anytime.

Ultra Low Waste per 1 Gallon of Filtered Water

Users' Testimonials

Amazingly useful.

I have an emotional investment in the product. It’s important for people and the environment. Plastic bottles must go.

Truly, the system has a good production of approx. 80 lt/hour and has a very low drain.

Install in Five Easy Steps

Connection Chart

Related Products

K871

K870

K858

K880

K875

K873

X855

What's in the Box

Technical Data

Operating requirements:

Performance:

Weight and size:

Pump box unit:

R.O. filtration unit:

Certification:

Warranty:

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If you’re still using bottled water for drinking today, you’ll be making a smart investment that saves you money in the long run and is better for the environment.
Get better than bottled water quality without the bottle!