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 0363444635
There are 12 products.
This slimline 4 stage undersink reverse osmosis is a slimline type with stainless steel PAE connection system tank, It has the Dow Filmtek 50 gallon per day membrane (200 litre)
200 litre per day genuine Dow Filmtec membrane @50 psi, 300 litres @ 87 psi. LOW WASTE 1.25 to 1. All components are Australian Standards and or NSF certified. Optional ALKALIZER
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
This Reverse Osmosis Undersink 4 Stage model PSI-021-4PG is a premium low waste 1 to 1 ratio unit configured specifically for treatment of Chloramines, Chloramines is a combination of Chlorine and Ammonia together. Optional ALKALIZER
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
PSI 021-Alka- 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.
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
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 re-mineraliser.
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
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.
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
The BOSS 031-DI-RM-RF is one of the very few reverse osmosis system on the market that can offer the removal of 99.99% of flouride and many more contaminates. The BOSS 031-DI-RM has state of the art technology with on board monitoring equipment. The mon
