Saw this on GAPS website..
http://www.gapswater.co.uk/acatalog/Titan_reverse_osmosis_systems.htmlTitan 1500 Reverse Osmosis Systems produce 5,700 litres per day* and feature (2) 2540 TFC HF1 high flow low energy membranes, (2) 2540 Champ PVC membrane housings, (1) aluminum white powder coated frame, (1) solenoid valve, (1) 3.2 GPM rotary vane pump, (1) 3/4 HP motor, (2) PuroTech 0-160 pressure gauges, (1) PuroTech 0-300 psi panel mount glycerin filled gauge (2) 20" big grey double o-ring filter housings, (1) 20" big white 5 micron sediment, (1) 20" big white 10 micron carbon block, (1) low pressure switch, (1) 1/4" brass manual flush valve, and (1) manual on/off switch.
The spec'd up model features all the entry level specification listed above plus panel mounted inlet and permeate dual TDS meter, high pressure switch, float switch, concentrate re-circ, permeate flow meter, concentrate flow meter.
The Fully loaded features all the spec'd up specifiaction plus a complete pre-filtration water softener system.
*Permeate production and salt rejection based upon test conditions: 550 ppm treated mains water, 150 psi pressure, 25C temp. water, pH7.