Undersink Reverse Osmosis Systems
Undersink Reverse Osmosis Water Filter Systems

Undersink Reverse Osmosis Systems

The PSI Water Filters undersink reverse osmosis systems work under the sink, making them ideal for people who want a reverse osmosis system that can work quietly and out of sight.

PSI Water Filters supply only quality water filter systems with most systems having 10 years warranty.

The premium range of Undersink Reverse Osmosis systems have an exclusive membrane flushing valve. The storage tanks are stainless steel anywhere the water touches the tank. Large range of optional faucets (taps).

If you need any help choosing the right undersink reverse osmosis system, give our Water Filter Experts a call on 1300 305 579.

There are 11 products.

Showing 1-11 of 11 item(s)
Active filters

PSI-021-4P 4 Stage Reverse Osmosis Under Sink Premium Model

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This Reverse Osmosis Undersink 4 Stage model PSI-021-4P is a premium low waste 1 to 1 ratio unit featuring the exclusive membrane flushing. It has the Dow Filmtec 300 litre per day TFC membrane, the 300 litres is rated at 50 psi. Optional ALKALIZER

Price $560.00
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PSI-021-4P-GM 4 Stage Reverse Osmosis Under Sink Premium Model

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This Reverse Osmosis Undersink 4 Stage model PSI-021-4P-GM is a premium low waste 1 to 1 ratio unit featuring the exclusive membrane flushing. It has the Dow Filmtec 300 litre per day TFC membrane, the 300 litres is rated at 50 psi. Optional ALKALIZE

Price $590.00
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PSI-021-5RM-HA 5 Stage Re-Mineralizing, Oxygen rich Hi alkalising

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This Reverse Osmosis Undersink 5 Stage model PSI-021-5RM is a premium low waste 1 to 1 ratio unit featuring the exclusive membrane flushing with a full size with Hi Alkalizer re-mineraliser. This re-fillable alkalizer system will produce water with a

Price $655.00
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QR04 Premium Reverse Osmosis

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The QRO4 are often also sold under the names HydrROtwist or PuRO Twist. The QRO4 that we stock have the faster 50 gallon per day (200 litre) membrane compared to others which have slower membranes. These are so easy to change the cartridges on that

Price $663.00
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PSI-021-5P-PI 5 Stage Reverse Osmosis Filter With Pi.

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Introducing our newest model to our ever increasing range of reverse osmosis systems. This system has been designed with the latest technology of the PI filters. Assembled here in Australia with quality components from countries like America.

Price $693.00
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6 Stage Extreme Low Waste Model 021-6ex

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With Premeate Booster Pump, pH correction, re-minerlizing, (alkalizer), pressure gauges and total dissolved solid electronic monitoring meter. Waste ratio of 0.6 to 1, lowest on the market

Price $895.00
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