AQUARIUM/REEF REVERSE OSMOSIS WATER FILTER SYSTEM WITH MANUAL FLUSH VALVE DI Resin is necessary to reduce Total Dissolved Solids (TDS) to zero and is the last stage of an RO/DI unit. It is unnecessary to use the expensive proprietary DI cartridges that other RO manufacturers sell. Simply buy a refillable DI cartridge and fill with DI resin. You'll save money and get the same results. A constant supply of high purity water can be obtained by using two cartridges in series and allowing the first cartridge to completely depleted. During this operation, the second cartridge ensures that the water leaving the system is of the highest purity. New cartridges are placed into the polishing position and the remaining cartridge is put into the "roughing" position. This ensures complete utilization of all the exchange capacity, which lowers operating costs while increasing average quality.The clear cartridges are refillable, so you can save with buying media in bulk, and using the inline cartridges again, and again. Please see this item for your filter replacement needs. 75 GALLON PER DAY SYSTEMS (6 STAGE) 1ST STAGE 5 MICRON SEDIMENT FILTER 2ND STAGE GAC Water Filter 3RD STAGE 5 MICRON CARBON BLOCK WATER FILTER 4TH STAGE 75GPD MEMBRANE 5TH STAGE MIXED BED DI FILTER WHITE INLINE HOUSING 6TH STAGE MIXED BED DI FILTER WHITE INLINE HOUSING COMES WITH ONE CLEAR HOUSING PRE FILTER 1ST STAGE SEDIMENT. 2 WHITE HOUSING 1 GAC FILTER 1 CARBON BLOCK FILTER 1 AUTOMATIC SHUT OFF VALVE 1 FILTER HOUSE WRENCH FEED WATER Adapter COLOR CODED FOOD GRADE TUBING ONE INLINE BALL VALVE CHECK VALVE ON THE MEMBRANE HOUSING.MANUAL FLUSH VALVEInstructions for the installation of your system will be sent in a PDF to you email on record. Please ensure that the email address is correct. Contact us if you have not received it. The feed water valve caExported By ExportYourStore
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