The Compact is a five stage R.O./.D.I (Reverse Osmosis/De-Ionizing) Reefkeeping system using a 75 GPD (Gallons Per Day) FilmTec membrane for truly great water quality and production rates.
The Compact uses five stages of filtration and purification: Stage 1) Heavy duty standard industry size 10 Micron Poly Pro sediment filter. Stage 2) Genuine Gem coconut 5 Micron carbon block *Acid washed. Stage 3) Genuine Gem coconut 1 Micron carbon block filter *Acid Washed. This removes the remaining chemicals and chlorine. This filter is rated for 9,000 gallons. It's used to strip any remaining chlorine missed by stage 2. Stage 4) FilmTec TFC membrane 75 GPD (TW301812-75). Stage 5) One Mixed bed in-line D.I. cartridge 2.5 X 11" mixed bed D.I.. And our complete high quality installation hardware kit with instructions.
You will get truly awesome quality water and very good production rates. An ASOV (automatic shut off valve), the TW301812-75 FilmTec membrane, lots of carbon, and with practically zero maintenance resulting in zero mineral content and zero TDS.
Reefkeeping requires the reduction / removal of chemicals, Chloramines, bacteria, virus, salts, minerals, and heavy metals from top off and make up water. You need and want zero TDS- Pure chemical / Chloramines free water. | 
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