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Whirlpool WHER25 Reverse Osmosis Water Filtration System

2.4 out of 5 stars 85 customer reviews
| 34 answered questions

Price: $309.00 + $11.59 shipping
Only 1 left in stock.
Ships from and sold by Panaric in easy-to-open packaging.

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$309.00 + $11.59 shipping Only 1 left in stock. Ships from and sold by Panaric in easy-to-open packaging.

Frequently Bought Together

  • Whirlpool WHER25 Reverse Osmosis Water Filtration System
  • +
  • Whirlpool WHEERF Replacement Pre/Postfilter Set for WHER25 Reverse Osmosis System
  • +
  • Whirlpool WHIRLPOOL-WHEERM Reverse Osmosis Membrane for WHER25 RO
Total price: $405.12
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Product Description

water filtration

Product Information

Technical Details

Part Number WHER25
Item Weight 14.2 pounds
Product Dimensions 15.4 x 14.3 x 13.3 inches
Item Package Quantity 1
Certification certified frustration-free
Batteries Included? No
Batteries Required? No

Additional Information

ASIN B004S7TAK2
Customer Reviews
2.4 out of 5 stars 85 customer reviews

2.4 out of 5 stars
Best Sellers Rank #233,586 in Home Improvements (See top 100)
#464 in Home Improvement > Kitchen & Bath Fixtures > Water Filtration & Softeners > Under-Sink Filters
Shipping Weight 14.2 pounds (View shipping rates and policies)
Date First Available March 15, 2011

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

I have had this filter for 6 years and love it. As one reviewer stated "I love water now". I have found a few ways to take this from a really good filter system to an awesome filter system...

First, don't use a water softener if you can help it. If not, then at least put this before the softener. Water softeners work by removing calcium ions (scale) from your water and replacing them with sodium ions. They usually add Total Dissolved Solids (TDS) to your water and this makes your filter have to work harder, requiring more frequent filter replacements.

Second and probably the most important tip, buy a TDS meter. Don't go by the blinking 6 month indicator light. Chances are your filters will last much longer than 6 months. A TDS meter will tell you for sure. Check your water quality once a month. When your TDS starts to rise, it's time to replace your carbon pre-filter. If it goes back down (will be high at first with a new filter), then great. If not, then replace your carbon post-filter. This will greatly cut down on the cost of replacement filters because you only replace them when needed. More than likely you will not have to replace the reverse osmosis membrane but once every few years. Again, go by the TDS meter to tell you when the filters need replacement. I replace my carbon filters about once every 6-8 months and my reverse osmosis membrane every 2-3 years. Throw the battery away and don't even use the 6 month light...

To get your filters to last even longer, install a whole house carbon filter right after your water pressure regulator, before your reverse osmosis system. You will not only save money by replacing just the whole house element every 3 months or so, you will also save your plumbing fixtures by keeping sediment out of the lines.
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Ok...so I'm not the person that's concerned about taste. In fact...most of you reading this don't care about why Reverse osmosis filtering is important for an aquarium....but let me begin on the basics.

1. Yes it wastes somewhere between 4-5 gallons for every 1 gallon it filters.
2. It does take up under the sink space...if your not at all good with plumbing and don't hire a professional.
3. The filters run about 100$ for a full set - 1 pre-filter, 1 post-filter, and 1 Reverse Osmosis filter.
Note: they say you will need to replace every 6 months...If you have hard water and can smell it from the tap, you will likely have to change the filter more often. If you have relatively good clean water the filter could last a year.
4. WHY I USE IT: The option of getting a Reverse Osmosis unit not only softens the water, but removes 99.5% of the bad chemicals in your tap. Chlorine, Chloramine, Flouride...etc. I have special fish that need clean soft water - this is the best way to get it.

Now - I tried the Home Depot GE version (same price) and let me tell you....it was the shoddiest, cheap, and in the end worthless unit. I took it back after the tank nut cracked while it was pressurizing...only to find out it was also missing a 2 important seals. I returned it and headed to Lowes...

Whirlpool Reverse Osmosis Filtration System WHER25
Pros :
Easy to install (if your not too concerned about how it looks)
Highest quality parts than any other competitors in the same price range.
Fairly quiet
Saves money in the long run (for me it paid for itself in a month...
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3 Comments 71 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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In the literature the RO membrane does not need to be changed every 6 months, just the pre and post filter. The RO membrane will let you know when it is time by decreased production or pressure. They indicate "The membrane should be replaced after a decrease in water pressure or quality."
Have had mine for 5 years and only changed membrane once. I'm connected to city water and move the post filter to the pre spot and put on a new post filter about every 6 months or so. The pre filter needs to remove big items, the RO membrane removes the disolved solids and the post filter removes the odor. If you have lots of smell to your water, like with some wells, might make sense to change both every time.
1 Comment 52 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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4.5 stars out of 5

The water that comes out of this gem is very clean and pure and has spoiled my family. When we go to a restaurant we can tell when they bring us tap water now.

We use a whole house water softener because the water in San Antonio TX has a lot of lime and sediments.

I bought mine at a competitor a year ago thinking for the price if it works a year I would be ahead of the game.

If you do this yourself, you might have to troubleshoot leaks, that is not uncommon.

I purchased a second unit to get a extra tank installed with the first one and to get the filters. The second tank increased the amount of water on tap and as a bonus increased the water pressure coming from the system.

We also purchased the brushed stainless faucet from another manufacturer. The one that comes with the unit is plastic and does not seal to the counter very well. If the counter gets wet it may leak under the sink.

I did add valves to both tanks at the time I upgraded to make changes or repairs less messy. 3/8-Inch by 1/4-Inch NPFT Female Elbow Shut Off Valve http://www.amazon.com/gp/product/B003YKF2GU/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

When I had the drain valve at 3 o'clock it made a annoying dripping into the drain often. I changed it to closer to 1 to 2 o'clock at that quieted it.

I also bought a quick release with a valve that interfaced with the hose I had coming from the supply line.

My TDS meter measures 2 parts per billion compared to over 260 when not filtered.

All in all my family is finds this product very satisfying. I have not tried higher end units, I dont know if they would be any better.
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