WP-4V Manifold VOC RO System
Reverse Osmosis

WP-4V Manifold VOC RO System

  • Vendor:Premier a Watts Brand
  • Category: All, Bump 17, H2O Specials, Manifold Design, Reverse Osmosis, Top 20, VOC Design
Availability: Out Stock
$ 265.95
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The Watts Premier WP-4V VOC Reducing Reverse Osmosis System uses Premier's innovative modular.  This design cleans up the physical appearance eliminating all of the tubing running on the outside of the Reverse Osmosis System.  The Manifold Design also eliminates up to 17 possible leak points compared to a standard system. The WP-4V is paired up with a high quality Designer Chrome, Top Mount, Monitored Faucet that lets you know when it is time to replace the filters in your system.

The WP-4V Reverse Osmosis Filtration System uses a 4-Stage Filtration based upon separate treatments.

  • Sediment - A 5 Micron Sediment Filter traps sediment and other particles like dirt, silt and rust which affect the taste and appearance of your water.
  • Carbon - A 5 Micron Carbon Block Filters reducing Chlorine, and other materials that cause bad taste and odor.
  • 50 GPD Membrane - A Semipermeable Membrane removes TDS, Sodium and a wide range of contaminants such as Chromium, Arsenic, Copper, Lead as well as Cysts, such as Giardia and Cryptosporidium.
  • VOC - A high quality VOC Final Polishing Filter after the water storage tank to remove MTBE's, Atraine, Benene, Chloroform, Lindane and other VOC's from your drinking water.

California Prop 65 Warning CALIFORNIA PROP 65 WARNING: This product can expose you to chemicals including lead 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.

Click here to download your WP4-V Manual.

For the return policy details, please click here.


Parameter Minimum Maximum
Operating Temperatures: 40°F (4.4°C) 100°F (37.8°C)
Operating Pressure: 40 psi (2.81 kg/cm2) 100 psi (7.03 kg/cm2)
pH Parameters: 2 11
Iron: N/A 0.2 ppm
TDS (Total Dissolved Solids): N/A <1800 ppm
Turbidity: N/A <5NTU
Hardness: N/A 10 Grains Per Gallon



  • Reverse Osmosis Filtration System
  • 3-Gallon Storage Tank
  • Chrome, Top Mount, Monitored, Air-Gap Faucet
  • Adapt-A-Valve™
  • Full Set of Filters
  • 50 GPD Membrane

Product Dimensions

  • Rack and Cartridges (15.8" W x 16.7" H x 4.8" D)
  • Tank (13.6" H x 11.0" D)
  • Model # RO-WP-4V, Item # 500109

(Due to the individual fittings the exact measurements may vary slightly.)

This warranty will be void if defects occur due to failure to observe the following conditions:

  • The Reverse Osmosis System must be hooked up to a potable municipal or well cold water supply.
  • The hardness of the water should not exceed 10 grains per gallon, or 170 ppm.
  • Maximum incoming iron must be less than 0.2 ppm.
  • The pH of the water must not be lower than 2 or higher than 11.
  • The incoming water pressure must be between 40 and 100 pounds per square inch.
  • Incoming water to the RO cannot exceed 100° F (40° C).
  • Incoming TDS/Total Dissolved Solids not to exceed 1800 ppm.
  • Do not use with water that is micro-biologically unsafe or of unknown quality without adequate disinfection before or after the system

This warranty does not cover any equipment that is relocated from the site of its original installation. This warranty does not cover any charges incurred due to professional installation. This warranty does not cover any equipment that is installed or used outside the United States of America and Canada.

To see additional information and details regarding the warranty, please click here.

Your Rights Under State Law

Some states do not allow limitations on how long an implied warranty lasts, and some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply. This warranty gives you specific legal rights, and you may have other legal rights which vary from state to state.