Stage #1 - Five Micron Sediment Filter (104017) traps sediment and other particulate matter like dirt, silt, and rust which affect the taste and appearance of your water. Note - Recommend changing every 6 months.

Stage #2 & #3 - Five Micron Carbon Block Filter (101009) helps ensure that chlorine and other materials that cause bad taste and odor are greatly reduced. Note - Recommend changing every 6 months.

Stage #4 - 50 GPD (Gallons Per Day) RO Membrane (560018) is the heart of your Reverse Osmosis System. This semi-permeable membrane will effectively remove TDS, sodium and a wide range of contaminants such as chromium, arsenic, copper, and lead. Because the process of extracting this high quality drinking water takes time, your RO water treatment system is equipped with a storage tank. Note - Recommend changing every 2 to 5 years depending on your water quality.

Stage #5 - In-Line Granular Activated Carbon (GAC) Filter (560010) is used after the water storage tank, and is used as a final polishing filter. GAC filters are used to remove chemicals that give objectionable odors or tastes to water such as hydrogen sulfide (rotten eggs odor) or chlorine. Note - Recommend changing every 12 months.

7 Pack Annual Filter Kit - 500024 - This kit contains two Sediment Filters (104017), four Carbon Block Filters (101009), and one 10" In-Line Granular Activated Carbon (GAC) Filter (560010).

Green 7 Pack Annual Filter Kit - 560022 - This kit contains two Sediment Filters (104017), four Carbon Block Filters (101009), and one 10" In-Line Granular Activated Carbon (GAC) Filter (560010).

Carbon Block Premium Plus Bi-Annual Filter Kit - 560067 - This kit contains one sediment filter (104017), two carbon block filters (101009), one 10" in-line granular activated carbon (GAC) filter (560010), and one wrench.

Carbon Block Premium Bi-Annual Filter Kit - 560002 - This kit contains one sediment filter (104017) and two carbon block filters (101009).

Deluxe GAC, Bi-Annual Filter Kit (10") - 560066 - This kit contains one sediment filter (104017), one granular activated carbon (GAC) filter (100036), one 10" in-line granular activated carbon (GAC) filter (560010), and one wrench.

Hardness - Recommended hardness not to exceed 10 grains per gallon, or 170 parts per million. System will operate with hardness over 10 grains but the membrane life may be shortened. Addition of a water softener may lengthen the membrane life.

Water Pressure - The operating water pressure in your home should be tested over a 24 hour period to attain the maximum pressure. If the incoming water pressure is above 100 psi then a water pressure regulator is required. A booster pump is needed for incoming water pressure under 40psi.

Copper Tubing - Reverse Osmosis water should not be run through copper tubing as the purity of the water will leach copper causing an undesired taste in water and pin holes may form in the tube.

Arsenic (As) is a naturally occurring contaminant found in many ground waters. Arsenic in water has no color, taste or odor. It must be measured by an arsenic test kit or lab test.

Public water utilities must have their water tested for arsenic. You can obtain the results from your water utility contained within your consumer confidence report. If you have your own well, you will need to have the water evaluated. The local health department or the state environmental health agency can provide a list of test kits or certified labs.

There are two forms of arsenic: pentavalent arsenic (also called As (V), As (+5)) and trivalent arsenic (also called As (III), As (+3)). In well water, arsenic may be pentavalent, trivalent, or a combination of both. Although both forms of arsenic are potentially hazardous to your health, trivalent arsenic is considered more harmful than pentavalent arsenic. RO systems are very effective at removing pentavalent arsenic. Free chlorine residual will rapidly convert trivalent arsenic to pentavalent arsenic. Other water treatment chemicals such as ozone and potassium permanganate will also change trivalent arsenic to pentavalent arsenic. A combined chlorine residual (also called chloramine) where it does convert trivalent arsenic to pentavalent arsenic, may not convert all the trivalent arsenic in to pentavalent arsenic. If you get your water from a public water utility, contact the utility to find out if free chlorine or combined chlorine is used in the water system.

This Premier reverse osmosis system is designed to remove up to 98% of pentavalent arsenic. It will not convert trivalent arsenic to pentavalent arsenic. Under laboratory standard testing conditions, this system reduced 0.30 mg/L (ppm) pentavalent arsenic to under 0.010 mg/L (ppm) (the USEPA standard for drinking water). Actual performance of the system may vary depending on specific water quality conditions at the consumer’s installation. In addition to the independent laboratory standard testing conditions, Premier has conducted additional field testing on our reverse osmosis systems to determine trivalent arsenic reduction capabilities. Based upon Premier's field testing, it has been determined that the RO units are capable of reducing up to 67% of trivalent arsenic from the drinking water.

This reverse osmosis system contains a replaceable component critical to the efficiency of the system. Replacement of the reverse osmosis component should be with one of identical specifications, as defined by the manufacturer, to ensure the same efficiency and contaminant reduction performance.

If any part of your WP5-50 is defective in workmanship (excluding replaceable filters), return unit after obtaining a return authorization (see below), within 1 year of the original retail purchase, Premier will repair or, at Premier’s option, replace the system at no charge.

For warranty service, call 800-752-5582 for a return authorization number. Then, ship your unit to our factory, freight, and insurance prepaid, with proof of date of original purchase. Please include a note stating the problem. Premier will repair it, or replace it, and ship it back to you prepaid.

This warranty does not cover defects resulting from improper installation, (contrary to Premier printed instructions), from abuse, misuse, misapplication, improper maintenance, neglect, alteration, accidents, casualties, fire, flood, freezing, environmental factors, water pressure spikes or other such acts of God.

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

#1 - The reverse osmosis system must be hooked up to a potable municipal or well cold water supply.

#2 - The hardness of the water should not exceed 10 grains per gallon, or 170 ppm.

#3 - Maximum incoming iron must be less than 0.2 ppm.

#4 - The pH of the water must not be lower than 2 or higher than 11.

#5 - The incoming water pressure must be between 40 and 100 pounds per square inch.

#6 - Incoming water to the RO cannot exceed 100 degrees F (40 degrees C).

#7 - Incoming TDS (Total Dissolved Solids) not to exceed 1800 ppm.

#8 - 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.

Premier will not be responsible for any implied warranties, including those of merchant-ability and fitness for a particular purpose. Watts will not be responsible for any incidental or consequential damages, including travel expense, telephone charges, loss of revenue, loss of time, inconvenience, loss of use of the equipment and damage caused by this equipment and its failure to function properly. This warranty sets forth all of Premier's responsibilities regarding this equipment.

If Premier chooses to replace the equipment, Premier may replace it with reconditioned equipment. Parts used in repairing or replacing the equipment will be warranted for 90 days from the date the equipment is returned to you or for the remainder of the original warranty period, whichever is longer. This warranty is not assignable or transferable.

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.