Whirlpool WHER25 Reverse Osmosis Water Filtration System

Papa Bear: The system works well. Filters are easy to change. I’m not happy that it drips at the tap, and I can’t seem to get it corrected. If I could get it to stop dripping, I’d give it 5 stars.

United States on Nov 26, 2023

Darb: Purchased as a replacement had the same model for around 20 years it had a leak so replaced

United States on Nov 17, 2023

Ruby B.: We wanted to get a reverse osmosis system for drinking water, but with so many random companies out there selling reverse osmosis systems, I decided to go with Whirlpool because I recognized the brand and knew they'd still be around in the coming years. I didn't want to have to replace the system if I had trouble getting filters.

I can't speak to installation because my brother did it for us, but he didn't mention any major issues. He's not a plumber, just a guy who can read directions and figure stuff out.

The taste of the water is fantastic. There's a huge difference. Replacing filters has been super easy. We have the filters on the Amazon subscription service to ship out every six months. I downloaded a PDF of the directions that I keep and reference whenever we need to sanitize and purge the system. Overall, we are super happy with this purchase.

The complaints: The faucet is terrible. Replacing the battery is pointless, and it rusts up anyway. At one point the faucet started to leak from the air gap, and my brother had to disassemble and reassemble the faucet to clean it out. I think one of the tubes disconnected somehow. It's given us issues but seems...

United States on Jun 09, 2023

Steve Roberts: More output volume than the two-filter system it replaced from the same mfg. I suppose the higher output is thanks to the reservoir tank. I needed REVERSE OSMOSIS to remove fluoride due to sensitivity.

Most of the reverse osmosis systems look hugely complicated and have what looks like a dozen other cartridges. I had a moment of insight: Simple is good. This system has the core components of reverse osmosis filtration. No add-ons.

I'm sure some or all of those other cartridges in the competitor's systems are actually good and valuable. Having done under-sink filtration for a decade or two I know it's easy to forget to change something. I like having one, okay two things to change. Write the date to change the filter on the most visible filter end cap. Write, " CHANGE filters 1 & 3 on 6-1-2022" so the instruction is complete. Save the 2032 button battery they include for something useful, but not for the cute little blinking light that counts down 6 months. It's not foolproof. It's not even waterproof. It's important to write down the full instruction so you know and anyone else will know exactly what needs to be done when. Then you can confidently forget about...

United States on Dec 21, 2021

Sergio AldanaSergio Aldana: Aunque cuenta con conexiones para una fácil instalación, típicamente la toma de agua eN México es derivada desde una tubería de diámetro mayor que las conexiones provistas por el proveedor y tendrán que adaptar de lo existente en el mercado. En mi caso, fue necesario comprar una manguera coflex + una "TE" de acero galvanizado y una adaptación rápida para conectar con la manguera de suministro de agua al filtro (foto 2). Dada la forma de filtrar el agua (osmosis inversa), el sistema deshecha una gran cantidad de esta (la mayoría de ella), lo cual me parece inadecuado y deberá buscarse la forma de aprovechar esta agua sin tratamiento (retorno a cisterna o en un depósito alterno) De acuerdo al manual (foto1), el rechazo de agua es del 86% !!!

Mexico on Sep 24, 2021

Lance: After our prior reverse osmosis system got so old that we could no longer obtain replacement parts/filters, we decided to just buy a new one (for less than the cost of Culligan service call). After it arrived, I contemplated calling a plumber to handle the installation, but my scientist daughter was home from college and said that she'd just do it "with" me (I basically watched). She had everything installed and plumbed in about an hour, and even installed an extra cut-off valve between the unit and the tank so what she could isolate the pressurized tank down the line just in case. The instructions were very easy to follow, and in this case things were made easier by us already having the reverse osmosis faucet installed). However, we did spring a bit of a leak from her not having the hand strength to fully seat one of the tubes in its connector (easily fixed with a bit of extra muscle- basically my only contribution). As home installation projects go, I'd place this between replacing an electrical switch with a new "smart switch" (on the easy side), and sprinkler repair. After sterilizing the unit/filters, the water tastes (and tested) great. BTW, our old unit (having not had...

United States on Aug 12, 2021

Kristi: Seller was fast at delivering. Exactly as shown, and easy to install

Canada on May 10, 2019

Castor32: It works very well. Installation is easy but you need to have the right tools.

Canada on Dec 04, 2017