changing filter media in RODI to purify tap water for salt water reef aquarium.All BRS RO/DI systems reflect the latest in reverse osmosis technology with updated filters, components and design updates.Value systems:Designed to treat for chlorine, low volume chloramine usage and most well water*. Value systems are compact, portable, upgradeable and most importantly affordable.Universal systems: Designed to be best in industry filtration for chloramines, chlorine and well water as well as cover the widest array of contaminates. This is the ideal solution if you simply want to know you have the best filtration available. (http://cdn.bulkreefsupply.com/media/wysiwyg/PDFs/pdf-image.jpg)BRS 6 Stage Universal RO/DI System InstructionsThe standard BRS Universal system model is the most affordable solution that treats for virtually every water treatment concern for the reef aquarium and is completely upgradeable for the future.6 Stages of Filtration:* GE ROSave.Z 1 Micron Depth Filter (http://cdn.bulkreefsupply.com/media/reverse_osmosis/nsf.jpg)
* Dual BRS Universal 1 Micron Carbon Block Filter (http://cdn.bulkreefsupply.com/media/reverse_osmosis/nsf.jpg) (35,000 Gallons Chlorine / 3,500 Gallons Chloramines)
* 75 GPD Dow Filmtec Membrane (http://cdn.bulkreefsupply.com/media/reverse_osmosis/nsf.jpg)
* Pre-filled Dual Deionization (DI) stage with refillable cartridgesParts Bag Includes:* 1/4" push connect drain saddle clamp to plumb the waste water line from the RO system to a sink's drain pipe
* Mur-lok push connect inline ball valve for easy on/off
* Filter wrench to tighten and loosen canisters
* Self-piercing saddle valve to make a permanent connection to household water supply
* Chrome faucet connector with adapters to make a non-permanent connection to kitchen sink
* Utility sink/garden hose adapter to make a non-permanent connection to garden hose or laundry tub
* Mur-lok EZ angle stop adaptor to make a semi-permanent connection to household water supply under sink
* Float Valve
* Insta-Test Free & Total Chlorine Strips to test water for proper filter replacementStandard Features:* Automatic shut-off valve
* Mur-lok push connect dual EPDM O-ring fittings
* 10 Ft each of 1/4" blue, red and black Tubing
* All BRS Universal Reverse Osmosis units exclusively feature NSF-certified BRS Universal Carbon Block Filters with 30% more carbon than standards blocks, NSF-certified GE ROSave.Z with twice the dirt and sediment capacity of most sediment filters and American made NSF-certified DOW reverse osmosis membranes.
* Includes Total and Free Chlorine test strips to help identify if your city is using chlorine or chloramines
* Limited Lifetime Warranty which includes unlimited support via chat, phone or email with our WQA certified customer service staff
* Side mounted dual DI stages which allow for TDS testing between each stage.
* Qualifies for free shipping
* Dimensions - 16" x 6.25" x 15.5" (RO bracket) / 10" x 6.25" x 14" (DI bracket)In chemical and biological laboratories, as well as industry, cheaper alternatives such as deionized water (https://en.wikipedia.org/wiki/DI_water) are preferred over distilled water. However, if these alternatives are not sufficiently pure, distilled water is used. Where exceptionally high purity water is required, double distilled water (https://en.wikipedia.org/wiki/Double_distilled_water) is used.Distilled water is also commonly used to top off lead acid batteries (https://en.wikipedia.org/wiki/Lead_acid_batteries) used in cars and trucks. The presence of other ions (https://en.wikipedia.org/wiki/Ions) commonly found in tap water will cause a drastic reduction in an automobile's battery lifespan.Distilled water is preferable to tap water for use in automotive cooling systems. The minerals and ions typically found in tap water can be corrosive to internal engine components,