

💧 Upgrade your water game—because your health deserves the purest sip!
The Watts Premier RO Pure Plus 4-Pack Filtration Kit is a comprehensive replacement set designed for the RO Pure and Zero/Pure Plus reverse osmosis systems. Featuring a 4-stage filtration process—including sediment, activated carbon, VOC, and a 50 GDP membrane—this kit removes up to 99.8% of contaminants such as chlorine, pesticides, heavy metals, and volatile organic compounds. Its user-friendly push-button design and color-coded filters enable quick, tool-free replacements, ensuring consistently fresh, great-tasting water. Certified by WQA and trusted since 1989, this kit is essential for maintaining premium water quality at home or office.
















| Best Sellers Rank | #14,040 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #125 in Replacement Under-Sink Water Filters |
| Brand | Watts Premier |
| Customer Reviews | 4.7 out of 5 stars 1,262 Reviews |
| External Testing Certification | WQA |
| Item Weight | 0.04 Pounds |
| Material | crystal |
| Product Benefits | Reduces odor and harmful chemicals in water by up to 99.8% |
| Product Dimensions | 10"D x 12"W x 2.5"H |
H**1
Easy to insert
Very quick delivery and easy to exchange out
D**N
Great replacements!
Great replacements!
N**W
Reliable product used for decade
I have used this filters for over two decades.
P**T
Seem to be real deal
As advertised. Cheaper than what the companies web site sells them for. Hopefully they aren’t “fake”?
A**E
They Work
Installed easily into the system. Once flushed my water tastes just fine. These are the exact replacement units for my system so I did not expect any problems. After installation you have to flush the storage tank three times. It takes two to three hours to refill my storage tank so the process is tedious, be patient and read the directions! I suggest filling a container with filtered water before you start, that way there is some on hand. My directions suggested taking this time to check the pressure in the storage tank. For my system it should be 5 to 7 PSI in the tank. The pressure was low so I "carefully" pumped it up at the end of a drain cycle. It will push any remaining water out of the tank so you may have to pressurize several times. The tank MUST be empty for the final pressurization. I have much better flow now that I did that. One other thing, if your system is hooked up to your ice maker, isolate the ice maker before flushing the tanks 3 times. If you don't do this then you will need to flush the line going to the icemaker. The reason for knocking off one star is the price. I feel that the price could be a little more reasonable.
G**A
OEM replacement
OEM replacements. Filters water like they should. easy to install
I**M
perfect fit
good system to ashier family has great drinking water , much better than buying bottled water.
M**N
Real deal
Low price.