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Big Pump Premium Grade Reverse Osmosis Drinking Water System

3 Stages For Great Tasting Drinking Water

Stage 1: Prefiltration Carbon Filter
A sediment and activated carbon block filter removes physical particles such as silt and sediment as well as chemicals as chlorine.

Stage 2: Reverse Osmosis Membrane
The thin film composite membrane reduces up to 98% of dissolved mineral salts, metals, and other contaminants in your drinking water.

Stage 3: Post Filtration Polishing Filter
A final stage process through an activated carbon block filter to remove unwanted tastes and odors. Provides that final polish to deliver sparkling clean water

Watershield Big Pump Features:

  • Compact design. Space-saving footprint is great for an undersink installation
  • High performance production utilizing a 36 gallon per day T.F.C. membrane.
  • Quality branded components. No low value and lessor quality “knockoff’ parts found on so many other R.O. systems.
  • High purity acid-washed activated carbon block filters, with their superior dirt holding capacity and absence of carbon fines, make them a clear choice over lower cost, lessor quality granular activated carbon (GAC) filters.
  • Watershield Big Pump systems are assembled in America


  • Pure, Clear and Great Tasting Water
  • Crystalline, Harder, Clearer Ice Cubes
  • Pristine, Clean Rinsed Fresh Fruits and Vegetables
  • Quality Water for your Coffee and Tea
  • Pure Water Rinses Provide Spotless Glassware
  • Great for your Pets and Aquariums


  • Fresh, Clean Water Ready at your Tap
  • Outstanding Water Pressure from your Faucet; Fills a Water Pitcher in Seconds
  • No Deliveries to Schedule
  • No Trips to the Store


  • Pennies-A-Gallon for Pure, Clean Water vs. Dollars-A-Gallon for Bottled Water
  • Efficient Non-Electric Pump Provides the Water Pressure your Ice Maker Needs’
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