Ok as I am upgrading everything i have an Aqua Medic RO unit.
Its recently had 2 new filters put on, and theyre good for between 1500 to 2500 gallons, ive only done maximum about 80-100 gallons from them. Plus Ive brought 2 new filters for the next time round and these are brand new never been used so you are good for a long time yet with your water changes.
Heres the best description i could find for it.

Aqua-Medic RO Unit Standard
The Aqua-Medic Standard line RO units are compact and powerful and fulfill the highest demands for water quality. A sediment filter retains all particles larger than 5 µm and a carbon filter protects the membrane by removing the chlorine. The R.O. module consists of a membrane, membrane housing, and a flushing valve.

Using the latest generation of TFC (Polyamide-Polysulfone) membranes to provide the highest quality treated water, providing a recovery ratio of approximately 2.5 - 3 concentrate: 1 permeate, and a rejection rate of 95 to 98%.
Model Capacity at 15C and 4 bar
Standard 90 75-90 litres a day
Three unit capable of purifiying tap water from 75 to 90 litres per day

AQM RO Standard 90 £142.99

For the purification of tap water, c.90 litres per day (c. 25 gpd).

A compact R.O. unit, ideal for reef keepers.

It comes with the pipes but you will need the connecting part to your tap as i had it attached into a pipe with one of them self tapping/connecting type taps and that cant come off the pipe

I will let this go, with the 2 unused brand new filters aswell Pm me as im open to offers (sensible ones)

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BUMP still available

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BUMP, still available

still available, will consider swaps for something.

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still available, will consider swaps for something.