RO-1UP Water Filter System

RO-UN-0005 5-stage Unpumped Reverse Osmosis Water Filter For Drinking Water complete with fittings

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£119.94 inc-VAT


The RO-1UP is a water filtration system that fits under your sink for the filtration of drinking water. It is unpumped so relies on a high home water pressure, if your home does not have a high water pressure you need to consider a pumped unit. The unit includes a plastic tank and all fittings needed to install the unit, including an automatic shut-off valve, that will stop the flow of water when your tank is full. The Unit includes a 10" GAC Carbon filter. 10" Block Carbon Filter, a 10" 5 micron PP Filter a T33 Post Filter for Taste and Odour, and a 50GPD Vontron Membrane.

Reverse Osmosis alongside the correct carbon filtration process can remove chemicals from your water, such as chlorine and chloramine as well as most other total dissolved solids that normally come out of your tap. This process also removes any odours and tastes that have been caused by contaminants and chemicals.

This Reverse Osmosis Water Filter  like all unpumped reverse osmosis water filters, does rely on you having a strong mains water pressure. Please do not buy this item if you do not have a good water pressure, other pumped systems are more suitable. This unit operates best as input water pressures of between 30-60psi (2-4 Bar). We would suggest that this is not suitable for use with gravity fed unpumped cold water system (where the water is stored in the loft). Normal UK water pressure should be from around 2 bar and above.

5 Stage Filtration System

Stage 1 - Sediment Filter
10" 5 Micron PP sediment filter

Stage 2 - GAC Filter
10" Granular Activated Carbon filter

Stage 3 - CTO Filter
10" Block Carbon CTO filter

Stage 4 - Reverse Osmosis Membane
Vontron 50 US Gallons per day RO Membrane (189.3 litres per day)
see description regarding UK output*

Stage 5 - Post Filter

T33 Filter for taste and odours

*There are a number of factors that affect the output of reverse osmosis water filters, such as input water pressure, TDS of input water, bacterial film on RO membranes if they are not changed regularly and water temperature, especially in winter months. Based on UK water conditions, you can expect to get aproximately 50% of the membrane's rated capacity.

Dependent upon usage of the unit the 4 cartridge filters will need changing every 6 months, the membrane filter requires changing at approximately 18-36 months.  The life of the Reverse Osmosis Membrane, is affected by the following factors, Bacterial Contamination (not changing pre-filters often enough), Chlorine Contamination of the membrane, (again by not changing pre-fitlers often enough) and the worst culprit, Hard Water.

We are regularly asked why we say our membranes may need changing at 18 months or less, when other sellers quote their membranes will last 3 years. We call it honest genuine expectations, our membranes are made to the same and in many cases higher specification than reverse osmosis membranes from other manufacturers. If you have very soft water or using the RO system on the output of a domestic water softener then yes you can expect a life of around 3 years.  If used with a rainwater harvesting system you could expect longer as you do not have a Chlorine loading in the water you are filtering.

This products housings are made from heavy duty food grade plastics casings. The filters are manufactured by a quality ISO 9001 company a member of the Quality Water Association of America. This unit will provide you with tap water tasting as good as it gets.

We offer our complete support with this unit, just call us for any help or advice you need.


  • Pressurised Water Storage Tank (plastic, 3.2 US Gallons, 12 litres)
  • Mains water connection (use only with copper pipes)
  • Waste water saddle valve
  • Connecting pipe
  • Water tap chrome effect, 1/4 turn ceramic disc tap
  • Membrane spanner
  • Filter spanner
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