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WECO CLARINA-75 High-end Undersink Reverse Osmosis Drinking Water Filtration System

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  • Complete 75 gallons a day five-stage reverse osmosis water purification system for home installations.
  • Compact 2 Gallon water storage tank for smaller footprint.
  • High-efficient 1:1 Thin Film Composite (TFC) reverse osmosis membrane removes water contaminants like cadmium, lead, nitrate, fluoride and mercury, even in high TDS water. Double the recovery over standard reverse osmosis elements.
  • Solid-block activated carbon block cartridge eliminates chlorine, chloramine, bad tastes and odors, chemicals and carcinogenic disinfection byproducts.
  • Granular carbon post filter polishes water to crystal clear perfection.


The WECO CLARINA Undersink Reverse Osmosis Water Filtration System is a complete 5-stage water purification system that boasts double the recovery over traditional RO water filtration systems. The CLARINA filtration system is the ideal water purification filter for home. CLARINA reverse osmosis system uses five individual stages of water filtration to create pure, refreshing drinking water. The process starts by pre-filtering the water through a 5-micron spun-bonded sediment filter. This prefilter removes tiny particles that can get into the water supply. Particles of iron oxide (rust), silt, sand grains and insect parts are common drinking water contaminants. Sediment removal protects your family from drinking these particles and prevents the filtration system from clogging. The sediment filter is contained in a clear, see-through filter housing, making it easy for you to see when the filter needs to be replaced. No need to guess!

Next the water passes through 5-micron and 0.5-micron solid activated carbon block adsorption cartridges. These second and third filtration stages remove taste and odor-causing disinfection chemicals like chlorine and chloramine. The porous carbon cartridges also remove rotten-egg gas (hydrogen sulfide) and musty odors from natural organic substances (geosmin). Chlorine disinfection is known to form cancer-causing byproducts in the water. These carcinogens, called trihalomethanes (THMs), are removed by the activated carbon block filter. The activated carbon cartridge also removes organic contaminants like pesticides, industrial chemicals, pharmaceuticals and solvents that contaminate municipal and well water sources.

But that’s not all. The next filtration stage involves the reverse osmosis (RO) process. Tap water is “squeezed” through a special Thin Film Composite (TFC) semi-permeable membrane. Heavy metals, like lead, cadmium and mercury, are removed while purified water passes through. The RO process also removes salts, nitrate, fluoride, radon and benzene. The reverse osmosis membrane features outstanding efficiency. Other reverse osmosis filters can waste up to 10 gallons of water for every gallon of pure water made. The Pentair GRO encapsulated high-performance RO membrane produces only one gallon of waste water for each gallon of purified water. This saves you money, reduces waste water, conserves resources and helps the environment. For the final stage of purification the water flows through granular activated carbon (GAC) in-line post filter. This acts as a polishing filter, removing any traces of tastes, odors or gasses, for crystal clear, sparkling drinking water.

The WECO reverse osmosis filtration system also includes a pressurized water storage tank and a brushed nickel designer faucet for dispensing the purified water. WECO reverse osmosis systems use NSF-certified (Standard 61, Section 9) lead-free dispensing faucets. The faucets look attractive, fit into any decor and are certified lead-free to protect you, your family and pets. As the filtration system makes purified water, it fills the storage tank (up to 3 gallons at a time). The storage tank sends purified water to the designer faucet. Your regular sink faucet will provide unfiltered water for washing dishes and cleaning. The designer faucet provides only purified water for drinking, cooking, washing vegetables and pets. You’ll notice an immediate improvement in the taste of coffee, tea, iced drinks, fitness and sports drinks and more!

The WECO filtration system is pre-assembled can be installed with simple hand tools. We recommend installation by a licensed plumber to insure adherence to all local codes. Routine replacement of the filter cartridges is recommended to maintain filter performance. Replacement cartridges are available from WECO.

Standard Features

Options & Upgrades (call to add)

  • Inline TDS Monitor
  • High Volume Tanks
  • Luxury Triple Faucets (Hot /Cold /Filtered Water)


  • Drinking Water Purification
  • Iron, Hydrogen Sulfide and Manganese Removal
  • Arsenic, Nitrate & Lead Removal
  • Scale Prevention
  • Chlorine & Chloramine Removal
  • Well Water Taste & Odor Improvement
  • Deionized (Dl) Pretreatment
  • Low Flow Medical, Laboratory, Desalination Applications


  • High-efficiency Pentair® GRO Reverse Osmosis Membrane
  • Premium Grade High Pressure Clear Pre- Filter Housings
  • Chlorine & Chloramine Reducing 2½" x 10" Activated Carbon Block Filters
  • Chemical Resistant Materials
  • Rugged Construction. Available with Optional Floor Stand
  • ¼" Quick Connect Ports

UV Disinfection, Deionization, TDS Meters & Other Accessories are Available

* Additional options and upgrades available

Available Pressurized Storage Tanks

Tank Specifications

Models Total Capacity ≈ Usable Capacity Diameter (in) Height (in) Connector Size Color
Gal Liter Gal Liter
1 3.8 0.6 2.3 6 9 ¼" MNPT White
2 7.6 1.2 4.5 6 12 ¼" MNPT White
3 11.4 1.8 6.8 9 16 ¼" MNPT White
4.5 17 2.8 10.6 11 16 ¼" MNPT White
6 22.7 3.6 13.6 12 17 ¼" MNPT White
10 37.9 6 22.7 12 22 ¼" MNPT White
14 52.9 8.4 31.7 16 25 ¼" MNPT White
14 52.9 8.4 31.7 16 25 ¾ " MNPT Blue
20 80 14 53 16 31 ¾" MNPT Blue

Contaminants Reduced from Activated Carbon and Reverse Osmosis Combined Filtration

Chlorine Magnesium Silver Radioactivity Nitrate Boron Protozoa
Chloramine Potassium Zinc Chromium-6 Fluoride Arsenic (3+) Ameobic
Color Iron Strontium Chromium-3 Phosphate Arsenic (5+) Cysts
Odor Manganese Cadmium Lead Chromate Selenium Turbidity
Sodium Calcium Nickel Chloride Cyanide Barium Asbestos
Aluminum Copper Mercury Bicarbonate Sulfate Sediment Bacteria and more…


Models Capacity (GPD) System Dimensions (in) Tank Dimensions (in) Weight (lbs)
CLARINA-75 75 16L x 6D x 18H 9L x 9D x 13H 28
CLARINA-75ALK 75 16L x 7D x 19H 9L x 9D x 13H 30
More Information
UPC 745051165369
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