• Watts Premier WP105331 RO-Pure 50 GPD Membrane

The Watts Premierh2o WP105331 Push Button Post-Carbon cartridge is designed to fit RO Pure (RO-4) Reverse Osmosis System, RO Pure Plus (VOC) Reverse Osmosis System and the WP-RO4 System

The Watts WP105341  This semi-permeable membrane reduces a wide range of contaminants such as Arsenic, Lead, Nitrates, Percholate, Chromium, Copper, Dissolved Solids as well as Cysts including Giardia and Cryptosporidium.

The WP105331 cartridge is 9 7/8-inch long and should be replaced every 6 months or 1,000 gallons. WP105341 cartridges have double o-rings to prevent leakage.

*Note: Filter life may vary based upon local water conditions or use patterns.

Cartridges connect directly to the unit by a simple Push Button. These cartridges feature a patented valve which allows for cartridge replacement without shutting the water off--internal valves shut off flow when cartridges are removed.

WP105331 Reduces the following contaminants:

  • Arsenic
  • Lead
  • Nitrates
  • Percholate
  • Chromium
  • Copper
  • Dissolved Solids
  • Cysts including Giardia and Cryptosporidium

WP105331 Specifications

BrandWatts Premier
Installation TypePush Button
Manufacturer's IdWP105331
Actual Size (in)9 7/8 inches (length) x 2 1/2 inches (outside diameter)
MediaRO-Pure Replacement
50 GPD Membrane 
Filter Life (gallons)N/A2-5 Years
Filter Life (months)6 months
Micron Rating (Nominal)5
Flow Rate (gpm)0.5
Color / FinishWhite / Green

Certified to NSF/ANSI 372 Lead Free

Certified to NSF/ANSI 58 Certified Reverse Osmosis Units

Note - This product will NOT fit the Watts 1/4 Turn KWIK Change Filter System.

CALIFORNIA PROP 65 WARNING: This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Watts Premier WP105331 RO-Pure 50 GPD Membrane

  • Product Code: WP105331
  • Availability: In Stock
  • $99.00

  • Ex Tax: $99.00