Reviews and General Information
on the Best Water Treatment Systems Around
SoftWaterFiltration is supported by our readers. When you purchase an item through links on our site, we may earn an affilate commission.

Watts Premier 531411 4-Stage Reverse Osmosis Review

Not All Water Filtration Systems Are Created Equal

You may be forgiven for thinking the title to this review means I’m about to give you a whole list of negatives. In fact, that couldn’t be further from the truth! The point I’m making when I say all water filtration systems are not created equal is that various models will do different things when it comes to filtering your water.

For instance, you can have models that are very cheap to buy because they have been designed to remove that horrid chlorine smell from your water, and will remove a fair amount of other contaminants that can make tap water unpleasant to drink. However, for this review you’re going to find out about the Watts Premier RO-Pure 531411 4-Stage Reverse Osmosis Water Filtration System.

Watts Premier RO-Pure 531411 4-Stage Reverse Osmosis System
Watts Premier 4-Stage Reverse Osmosis System
See it at Amazon

Notice the name of the product states “4 stages”. This means the water from your tap isn’t just turned into a liquid that’s odorless, colorless and tastes good, it will also go through a little more heavy duty cleansing.

So, on to the review:

How It Works

As you’ve probably worked out, this system is reverse osmosis which means it utilizes a membrane (something many other models don’t have). Reverse osmosis is preferred by lots of people simply because this filtration technique is far more superior.

At stage one your water will be go through a filter that removes sediment, rust, silt and other particles of dirt as small as 1 micron in size. These particles are what can make your water look like it’s just come from a pond! Even if it doesn’t they can still affect the color and taste of your water.

Stage two consists of a carbon filter which removes chlorine and other contaminants that can make your water smelly as well as affect the taste. If you’ve looked at reviews for this model elsewhere, these may be referred to as pre-filters because this all takes place prior to the reverse osmosis technology used.

Stage three is where it all really gets going. Your system includes a 50 gallon per day reverse osmosis membrane that filters out all the really nasty contaminants that can affect your health along with the taste of your water. It will reduce the amount of sodium, total dissolved solids (TDS) along with a good number of other things such as arsenic, lead, radium, copper, chromium and perchlorate.

At this stage, your water filtration system will also remove 99.95% of cysts such as cryptosporidium and giardia. As if this wasn’t enough, it will also reduce the number of nitrites and nitrates in your drinking water (you can read more on al these contaminants here).

The final stage consists of a post carbon filter and after that, it’s passed into the 3 gallon storage tank. The best part is this all takes place right under your sink. If this is your first time looking at a water filtration system, it may shock you to know just how many contaminants are present in water if you turn on your faucet, and rightly so! After all, the bottled water market turns over billions of dollars for a reason!

Other Points to Consider

Installation of this unit is not difficult for many people, and the manufacturer has included easy instructions that most of you will understand. However, do bear in mind that you will have to install the faucet which might mean some drilling. For me, I prefer to leave this to the professionals.

You should also consider your water pressure. If it’s currently below 40 psi, you may not get the pressure you want. The manufacturer has also made sure this water filter is up to the required standards as set out by the WQA, and it’s NSF/ANSI certified (standard 58).

Filters usually need to be changed about once every 6-12 months, and when it’s time to do this you won’t have a problem. There is no need to shut off your water supply and the replacements simply snap into place (no tools required)!


If you’re looking for great tasting, crystal clear water straight from your tap this model is definitely worth more investigation. Not only will you be able to at last enjoy the water from your tap, you can also be safe in the knowledge that your system goes 4 steps further towards a healthier way of keeping hydrated!

If you want to know more, why not take a peek at what deals Amazon currently have. The last time I looked, they were offering some great discounts!

Related Reviews

Back to Top