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Filtration System

$409.43
$105.62
Save $303
Filtration System

Filtration System

$409.43
$105.62
Save $303
Found at 8 stores ·Prices updated 1 day ago 
Store
Wayfair
Filtration System
$105.62 
Walmart
PUR® PUN4RO 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System
$105.62 
Amazon
PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System
$105.62 
as of 04:48 11/26
Home Depot
$122.12 
Lowe's
$122.12 
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Reviews

It’s made of plastic and broke when I tried to put the water line on the faucet.

MELISSA · Review provided by Home Depot
September 25, 2024

RO comparability

This RO system is efficient and was easy to install

Marlene · Review provided by homedepot.ca
December 26, 2023

So far so good.Does what it is supposed to do.

HomeDepotCustomer · Review provided by Home Depot
August 23, 2023

Rating provided by a verified purchaser...

Rating provided by a verified purchaser

HomeDepotCustomer · Review provided by Home Depot
September 09, 2022

Very easy to setup. Yes, do make sure your cuts...

Very easy to setup. Yes, do make sure your cuts are even and there will be no problems. Gotta have a straight cut to make it leak proof. Switched from an existing system and the only thing that was needed was a splitter for the ice maker. Great product thus far!

TALMADGE · Review provided by Home Depot
July 20, 2022

Installation instructions are very detailed and straight forward. I also...

Installation instructions are very detailed and straight forward. I also installed a tee in the faucet line to run to my refrigerator. Tap water taste great again.

Logan · Review provided by Home Depot
May 19, 2022

Cold water connector from Mars

The cold water adapter has a mixed connector. G 1/2 male and 1/2" NPT female. I just spent $40 on extra connectors to make it work. In what county does this connector make sense?!!!

Unhappy Camper · Review provided by homedepot.ca
February 13, 2022

[Rewarded Review] Great product for making RO water for brewing beer (or other uses.) In brewing beer, mineral cont...

Great product for making RO water for brewing beer (or other uses.) In brewing beer, mineral content of the brewing water is important, so one approach is to remove all minerals using RO, then add them back in the desired concentrations. To brew 5 gallons of beer takes 8-10 gallons of water, so capacity and filtering rate are important. The PUN4RO has a 2 gallon “storage” tank (capacity is not in the specs – I had to ask PUR tech support) and a quoted 23.3 gal per day maximum filtering rate. While I could pour the 2 gal from the storage tank, wait 2 hours, pour another 2 gal, etc., it would take 8 hours or so to get all of the water needed for a brew. A better solution came from a YouTube video, where the person routed the RO water output tubing to a plastic barrel with a float valve mounted at a specific height. So, the RO unit can run continuously for as long as needed, overnight for instance, to produce the desired quantity of water and automatically shut off.

PhilM · Review provided by Home Depot
January 30, 2021

[Rewarded Review] This is the second reverse osmosis system we have installed in the house. This second one was put...

This is the second reverse osmosis system we have installed in the house. This second one was put into a large laundry room addition and I just got the system working tonight after the plumber finished the sink install and added the supply valve for me. I have used it to the point that I can make comparisons to the older GE system we have in the kitchen.

PaulB · Review provided by Home Depot
January 26, 2021

[Rewarded Review] This DI water system is a breeze to install, it comes almost completely assembled so you will onl...

This DI water system is a breeze to install, it comes almost completely assembled so you will only have to connect the water line in, the water line to the drain. And the water line to the storage tank. All connections are color coded for simplicity and colored tubing is supplied to make each connection with, could not be more simple. The only thing different for each installation is the tapping of the cold water line. The cold water shut off valve on my sink was a compression fitting and the tap for the DI system was just 1/2 inch pipe threads so I shut off the water to the house and put the tap between the house plumbing and the shut off valve. the tap has a shut off on it so it works out fine. Every connection from there on is supplied. It is a nice looking compact system that should last for years. The water tastes better and it is mineral free so I use it in the coffee maker so it will never have to be de-limed anymore.

HomeDepotCustomer · Review provided by Home Depot
January 09, 2021

[Rewarded Review] I am extremely pleased with my new PUR 4-stage reverse osmosis water filtration system. I chose t...

I am extremely pleased with my new PUR 4-stage reverse osmosis water filtration system. I chose to install the system in my daughters bathroom because we fill up humidifiers every night and they are big water drinkers at night. I faced some challenges installing the unit because it was installed in a very shallow vanity. This unit is designed for a kitchen base cabinet but it works great for a bathroom as well, just be prepared to get creative get the unit to fit. The kit comes with everything you need aside from a hole saw bit for you counter. The faucet that comes with it is also very nice. I wish the water pressure was a bit stronger but it is more than sufficient for filling a glass of water.

Geoff · Review provided by Home Depot
January 03, 2021

[Rewarded Review] I'm very happy with this RO system now that it is installed. It comes with a separate faucet, but...

I'm very happy with this RO system now that it is installed. It comes with a separate faucet, but it works well with a single hole faucet set-up with a few modifications. We've had a eye out for an under the sink RO system for a while now. Although this system comes with a faucet, we decided not to drill through our granite countertop to install it. Instead, we purchased a 3-in-1 faucet designed to work with RO systems like this.

KN07 · Review provided by Home Depot
January 02, 2021

[Rewarded Review] The PUR 4-stage universal reverse osmosis water filtration system will be the perfect solution to...

The PUR 4-stage universal reverse osmosis water filtration system will be the perfect solution to our issues with well water. Not only is the well water hard requiring us to have a water softener, tests show that it has a number of contaminants. We will finally have safe drinking water from the faucet included in the kit. In fact, the kit contains everything you need for installation. We have called our plumber to install the system but their scheduling is delayed due to COVID. My husband doesn't like to tackle any project that requires plumbing and we need a special tool to drill a hole in our quartz countertop for the faucet. The system does require space in the cabinet under the sink so I'll have to reorganize my storage. The bracket mounts will definitely help preserve space. In addition to copper, chlorine and fluoride, the system should reduce lead by almost 97%.

Lu720 · Review provided by Home Depot
December 31, 2020

[Rewarded Review] Does exactly what it says it does. Water is taste free. The kit contains all the parts you will...

Does exactly what it says it does. Water is taste free. The kit contains all the parts you will need. There is only one hitch that you may have to come up with a work around. It does come with a separate spigot that will need a hole in the counter. Stone counters can be difficult for the DIY person to drill a hole into. Other than that the plumbing is basic. They provide an inlet and outgo part to rig into the pipes. I'm very pleased with this unit. I prefer the type of filters it uses for heavy particles. Very nicely done.

Passenthrough · Review provided by Home Depot
December 29, 2020

[Rewarded Review] The area that I live in is well known for hard water and I have already installed a water softene...

The area that I live in is well known for hard water and I have already installed a water softener for the entire house I picked up this reverse osmosis for underneath my kitchen sink to provide pure water for drinking and cooking purposes. I have also plumbed in the icemakers as well to so I get the clean water for that as well. Thing I like about the most about this kid is it uses universal filter so you should be able to find them at most places

CHRISTOPHER · Review provided by Home Depot
December 26, 2020

[Rewarded Review] Crisp, clean, and good tasting water is delivered from this reverse osmosis filtration system fro...

Crisp, clean, and good tasting water is delivered from this reverse osmosis filtration system from PUR. Reverse osmosis can remove many types of dissolved and suspended chemical species as well as biological ones.

CYRIAC · Review provided by Home Depot
December 24, 2020

[Rewarded Review] I had one of these that last for 16 years before the tank stop inflating. Pur makes one of the be...

I had one of these that last for 16 years before the tank stop inflating. Pur makes one of the best drinking water systems you can buy and they last a long time. This will be my second one to install under the sink. We use it for drinking water and cooking. Since the water is so clean it taste great. The instructions are simple to follow and it comes with everything you need to tap into your water line. It does not take up a lot of space if you mount the filters on the inter wall of the cabinet. The filters are easy to install and change out and the tool comes with the water filter. The easy connects make it so simple to install. The water outlet that you install on the top above THE sink is super nice and is silver to match my faucets. Pur also sells different colors if you need a matching outlet for your sink. Why I chose this water filter is because the filters are cheap to buy every 6 months at around 35 bucks when others are around 100 bucks every 6 months. Just an over all excellent water filter system to have in my home

swords30 · Review provided by Home Depot
December 21, 2020
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Overview

We found this at eight stores including Walmart, Amazon, and Home DepotThis product sells from $105.62 up to $409.43. Users can save 74% by shopping at Wayfair.

This is the lowest price we've seen, typically ranging from $182 to $333.

This product is also marketed as the 

Filtration System at Wayfair

,

PUR® PUN4RO 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System at Walmart

,

PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System at Amazon

.

Description

Enjoy cleaner, refreshing water with this 4-stage under sink reverse osmosis system. It reduces contaminants including lead and heavy metals, providing safe drinking water. The compact design ensures easy installation and maintenance.