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The Watts Premier RO Pure 50 GPD Membrane is an essential component designed specifically for under sink RO Pure (WP531411, WP531407) and Zero/Pure Plus systems (WP531517, WP531417), providing effective filtration for your reverse osmosis system. This package includes one 50 GPD (gallons per day) Membrane (WP105331), which is proficient in significantly reducing total dissolved solids (TDS) and various impurities, effectively removing 99.95% of cysts like, safeguarding your drinking water from common harmful waterborne chemicals.
Tested to meet the NSF/ANSI 42 standard for chlorine reduction, this membrane ensures your water not only tastes better but is also free from unpleasant odors associated with chlorine. The 11-inch filter is easily identifiable by its green label and cap, distinguishing it from other filters in the Watts Premier RO system range, thus simplifying maintenance and replacement processes.
A standout feature of this membrane is its push-button release mechanism, allowing for hassle-free replacement without the need to shut off the water source. This design innovation ensures that changing the filter is quick and straightforward, requiring no special tools. Simply press the button to release the old membrane and insert the new one.
Constructed from high-quality materials, the Watts Premier RO Pure 50 GPD Membrane guarantees long-lasting durability. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing the membrane filter every 2 to 5 years.
Please note this kit will NOT fit the Watts 1/4 Turn Kwik-Change RO System.
From the Manufacturer
This 50-Gallon per day semi permeable membrane will effectively reduce TDS (total dissolved solids), Sodium and a wide range of contaminants such as Lead, Arsenic, Perchlorate, Chromium, Copper and Radium. It will also remove over 99.95-Percent cysts such as Giardia and Cryptosporidium.
B. O. EDN
2025-08-28 10:26:38
Nice product. Should probably buy a backup
Denny Crane, Esq.
2025-08-24 10:57:00
I have used the Watts Premier filters before. They work well. Water in SoCal can have a metallic taste. With the 4-stage filter our tap water is drinkable.
Bill P.
2025-08-14 13:33:22
We had this water filtration system already installed when we bought our new home which gets well water. We didn't know when each filter was changed last so we decided to just start fresh and replaced all of the filters in the system at once. The water tastes great, just as good or better than bottled water. For a new homeowner this is a deal if you don't know when the filter was last changed. It's way more expensive to buy these one at a time and it wasn't worth the trouble to figure out which filter needed changing by trial and error so getting them all made the most sense. In the future it's slightly less expensive to get your 6-month, 1-year, and 5 year filters separately.
Richard Waligora
2025-06-06 20:18:52
Replacement filters for water cleanliness
Customer
2025-05-19 10:10:43
I've been using these for years in my reverse osmosis system. I always mark the date for replacement on them so they don't get left in the system for too long. Water tastes pure and clean.
Gail S
2025-05-17 20:03:36
Easy to switch out. Quick delivery.
Robert L B
2025-05-16 11:01:22
Easy to install and works well
Brujo
2025-05-15 12:41:34
Easy to replace. While Watts would like you to replace a set of filters once every few months (most of their RO systems include a flow meter that turns from green to red when you "need to replace" the filters), this part of their marketing is a scam. RO filter sets only need to be replaced when the total dissolved solids - TDS - number suddenly spikes, indicating a seal or a filter has failed. TDS should be tested once every few months, and the light turning from green to red is a great reminder to test. Removing the battery for the flow meter for a few seconds and replacing it resets the flow meter. I've had a Watts system for seven years and only recently has the TDS spiked, which provided me the information I needed to know it was now time to replace the filters. It's good work if you can get it, to have your customers dutifully replace an $80-100 set of filters once every 4-6 months when they see the light go from green to red. However, I think it is a much better investment to purchase and regularly use a digital TDS meter (it only takes a few seconds to test) for $50 to $100 and potentially save yourself $1700 of replacement filters. Please note, I've been building from scratch and maintaining retail RO systems for 40 years. Watts makes a good, inexpensive system. But I think they rely on back-end filter sales, like the razor / razor blade replacement business model.
Dennis
2025-04-25 16:55:19
Regular filters for watts reverse osmosis and as always easy to install . Regular filter change as recommended by manufacturer makes a difference in process of clean drinking water .
compost
2025-03-18 11:13:34
Son filtros de agua. Es un kit muy completo, pues incluye la membrana. Estoy contento...
Walter Nelson
2025-02-28 16:29:32
All watts products are well made, have a furnace humidifier by watts also. Never a problem with this filter, very simple to change.
Jose alberto
2025-01-14 18:00:22
Compre el kit la membrana se descompuso y ya no filtra
Tony
2024-12-01 14:03:42
These filters are worth the money. Easy to instal once you figure out the connection scheme. Water purity is excellent.
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