Domestic Reverse osmosis filters

Filter1 reverse osmosis filter

Artnumber: MO536F1
108.00 USD
Article: MO536F1

Reverse osmosis is the most effective technology of drinking water purification. It reduces 99.8% of impurities, as well as odors, flavors and viruses making water clear, clean, tasty and safe for human health, both adults and children. Along with that, the reverse osmosis filter is one of the most cost-effective methods of domestic water purification.

Advantages of the Filter1 reverse osmosis filter:

  • World leader DOW FilmtecTM membrane (USA)

  • 5 stages of water purification

  • 5.7 L of drinking water per hour

  • Up to 7 L storage tank

  • Delicious taste of water thanks to included coconut shell carbon filter

  • Filter housing made of pure European food grade plastic

  • Special vacuum tightness control

Benefits of using the filter:

  • Source of absolutely clean and safe drinking water perfect for baby formula

  • Dishes cooked with the water will keep vitamins essential for human health

  • Coffee beans and tea leaves will open up their flavors and aroma

  • Home appliances (kettle, iron, steam cooker, air humidifier etc.) will be protected from scale

  • The clean water can be used to water flowers

Certain users of reverse osmosis filters doubt that so thoroughly purified water can supply human organism with important minerals. But scientists have proved up to 90% of minerals are provided with food, not water.

Components of the filter:

  1. Filtration module

  2. Plastic storage tank (general vol. 12 L, effective vol. up to 7 L)

  3. Chrome ball valve faucet ‘Droplet’ for purified water

  4. Included feed water adaptor with feed valve for connection with water mains

  5. Ball valve faucet of storage tank

  6. Set of color tubes (4 pc.) for convenient filter installation

  7. Drain saddle clip for connection of the filter to sewers

  8. Set of replacement pre-filters (1st, 2nd, 3rd stages)

  9. DOW FilmtecTM membrane 36 GPD (136 L per day)

  10. Service wrenches for replacement of filters and the membrane

Stages of water purification

The feed water flows through the three pre-filters intended to reduce sediments (rust, sand, silt etc.), chlorine and chlorination by-products, as well as organic matter.

The fourth stage is represented by the reverse osmosis membrane which at the molecular level purifies the water from 99.8% impurities including bacteria and viruses. The purified water is supplied to the storage tank.

The carbon post-filter is the fifth stage of the water treatment. It contains high-quality activated coconut shell carbon which improves purified water taste and odor, and adds slight sophisticated sweetish flavor.   

Characteristics of the equipment



Inlet pressure for filter without pump, atm


Inlet pressure for filter with pump, atm


Pressure in storage tank, atm


Temperature of feed water, °C


Filter weight (basic configuration), kg


Temperature of environment limit, °C


Water supply external connection, inches

thread, ½

Dimensions of filter, HxWxD (basic configuration), mm


Dimensions of tank, HxWxD, mm


* If pressure in the water supply system is lower than indicated, the filter should be supplied with a pump. If pressure in the water supply system is higher than indicated, it is necessary to install a pressure regulator at the inlet before the reverse osmosis filter.

** If pressure is lower or higher than indicated, it is necessary to pump up or release the pressure.

*** If the temperature of feed water is within the range +20…+30 °C, selectiveness of the membrane insignificantly decreases, and capacity increases leading to insignificant growth of the TDS indicator. Application of the filter when the temperature of feed water exceeds +30 °C is not recommended.

The reverse osmosis filter is intended for treatment of cold water only.

If time needed to fill the storage tank has increased, it means that the pre-filters are exhausted, and it is necessary to urgently replace them. Delay with the replacement might damage or destroy the membrane. To avoid such critical situations, we strongly recommend to replace the set of pre-filters at least once in 3 months.     

If speed of filtration is decreasing significantly, it is necessary to replace the reverse osmosis membrane. We recommend to replace the membrane at least once a year.

In case there are long breaks (exceeding 2 weeks) in filter application, it is necessary to disinfect the filter (see detailed description of the procedure in the manual). When you are not planning to use the filter during a long period of time, it is recommended to turn off water supply to the filter.

Feed water requirements*





TDS, mg/L


Hardness, meq/L


Active chlorine, mg/L


Iron, mg/L


Manganese, mg/L


Chemical oxygen demand, mg O2/L


Total microbial count (TMC), CFU per 1 mg


Coli index


* If the feed water condition does not correspond to the indicated requirements, service life of the membrane and replacement filters might decrease.

** In case of application of the filter for borehole or well water, it is recommended to make a preliminary chemical analysis of the water. If certain indicators exceed the values in the table, it is recommended to install additional filters before the reverse osmosis filter.

With all the questions, you are welcome to address our employees who are experienced specialists in the area of professional water treatment.