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Home>Water Filter Brands>Whirlpool Water Filters>Whirlpool Reverse Osmosis & Under Sink Filters > WHER12


Whirlpool WHER12 Reverse Osmosis System


Whirlpool WHER12 Reverse Osmosis System and Whirlpool WHER-12 RO System
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Product Code: WHER12
  • Whirlpool WHER12 Reverse Osmosis System:
  • The Whirlpool WHER12 Reverse Osmosis System is a water treatment unit that uses household water pressure to reverse a natural physical process called osmosis. Water, under pressure, is forced through a semi-permeable membrane where minerals and impurities are filtered out.
  • The WHER12 reverse osmosis system includes replaceable pre and postfilter sediment-carbon cartridges. The prefilter removes sand, silt, dirt, rust particles, other sediments, and chlorine from the water supply before it can enter the RO membrane. The postfilter removes any tastes and/or odors that may remain in the water, after passing through the RO membrane, before going to the RO faucet. To prevent water waste, an automatic shutoff valve closes when the RO faucet is closed and the storage tank is full.
  • The Whirlpool WHER-12 drinking water system gives a continuous supply of sparkling clear, delicious water for drinking, cooking and other uses.
  • Whirlpool WHER12 Reverse Osmosis Systems conform to NSF/ANSI 58.
The Whirlpool WHER12 Reverse Osmosis System is not for sale, but we carry the replacement filters and reverse osmosis membrane below.
  • Whirlpool WHER12 Reverse Osmosis System Specs:
  • Supply water pressure limits: 40 - 100 psi
  • Supply water temperature limits: 40 - 100 F
  • Maximum total dissolved solids (TDS): 2000 ppm
  • Maximum water hardness: 10 gpg
  • Maximum iron, manganese, hydrogen sulfide: 0
  • Chlorine in water supply (max. ppm): 2.0
  • Supply water pH limits (pH): 4 - 10
  • Product (quality) water, 24 hours: 14 gallons or 53 liters
  • Percent rejection of TDS, minimum (new membrane): 90 - 95
  • Automatic shutoff control: yes
  • TDS Monitor: no
  • Filter Change Monitor: no
  • Efficiency: 8%
  • Recovery: 16%
  • Manufacturer: Whirlpool WHER12
  • Whirlpool WHER12 Reverse Osmosis System Replacement Filters:
  • Prefilter and Postfilter: The WSK-1 is a Whirlpool compatible sediment and activated carbon filter.

  • RO Membrane: The TW30-1810-36 is a Whirlpool compatible reverse osmosis membrane cartridge.

  • Whirlpool WHER12 Reverse Osmosis System Instructions:
  • To keep your reverse osmosis system operating and producing high quality water, you must make sure supply water is always within the limits shown in the specifications. Good supply water helps to assure longer life from the RO membrane cartridge, prefilter and postfilter cartridges. However, each of these will wear out in time and need replacement.
  • AT LEAST every 6 months, replace the prefilter and postfilter cartridges.
  • Replace the RO cartridge when the production rate and/or quality of product water drops. Product water may begin to taste different or bad, indicating solids and organics are passing through the RO membrane.
  • Quality water production, amount of waste water and percent rejection all vary with changes in pressure, temperature and total dissolved solids.
  • For water with hardness greater than 10 grains, the use of a softener is recommended.
  • Efficiency rating means the percentage of the influent water to the system, that is available to the user as reverse osmosis treated water, under operating conditions that approximate typical daily use.
  • Recovery rating means the percentage of the influent water to the membrane portion of the system, that is available to the user as reverse osmosis treated water, when the system is operated without a storage tank or when the storage tank is bypassed.
  • Chlorine in the water can adversely effect the RO membrane life. Most cities add chlorine to the water supply to kill bacteria. The prefilter removes chlorine up to the limits shown in the specifications before it enters the RO membrane. It is important to replace the prefilter cartridge at least every 6 months.
  • For indoor use only. Certification claims are for temperatures of the water supply to the reverse osmosis system of 40F to 100F. Install on the cold water line.
  • Do not attempt to use this product to make safe drinking water from non-potable water sources. Do not use the system on microbiologically unsafe water, or water of unknown quality without adequate disinfection before or after the system. This system is certified for cyst reduction and may be used on disinfected water that may contain filterable cysts.
  • For installations in the Commonwealth of Massachusetts: Installation by a licensed plumber is required. Plumbing code 248-CMR of the Commonwealth of Massachusetts must be used for installation.
  • How to change the WHER12 Prefilter and Post Filter Cartridges:
  • 1. Turn off the water supply and open the RO faucet to relieve pressure.
  • 2. Remove (turn to the left) both sumps from the filter heads. Be careful . . .the sumps are full of water.
  • 3. Remove and discard the inner cartridges in a proper manner. Flush the insides of the sumps with fresh water. Do not lose the large o-ring seals.
  • 4. Insert new cartridges with o-ring seals towards the top, and with lubricated o-rings in place, turn to the right to reattach the sumps. (Use a food grade lubricant such as silicone grease).
  • How to change the RO Membrane:
  • 1. Turn off the water supply and open the RO faucet to relieve pressure.
  • 2. Remove the sump from the filter head. Be careful . . .the sump is full of water.
  • 3. Remove and discard the RO cartridge in a proper manner. Flush the insides of the sump with fresh water. Do not lose the large o-ring seal.
  • NOTE: Sanitizing is recommended after servicing inner parts of the system.
  • 4. Insert new RO cartridges with o-ring seals towards the top, and with lubricated o-ring in place, turn to the right to reattach the sump.
  • 5. Purge the RO membrane cartridge.

This product is not available.