HydroLogic Stealth Reverse Osmosis 300 System-


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Designed for use in hydroponic and soil irrigation applications, the HydroLogic® Stealth Reverse Osmosis 300 System is a customized RO water filter that is capable of reducing more than 98 percent of all contaminants in tap water. Leading the industry in efficiency, the Stealth includes a choice of both 1-to-1 and 2-to-1 waste-to-product water ratios.


Customized for gardening and hydroponics. Stealth has been the top-selling filter in gardening and hydroponics for more than 10 years. The Stealth RO 300 produces 300 gallons per day of ultra-pure water. Stealth RO units now produce 50 percent more water than previous models.



  • A four-stage RO unit
  • Two RO membranes
  • Green Coconut Carbon Filter
  • Cleanable sediment filter
  • Membrane power flush kit
  • Automatic shut-off valve
  • Pressure gauge with colored operating zones
  • Wall-mountable metal bracket
  • Garden hose connector
  • Inline shut-off valve
  • 8-foot product water and drain tubing
  • 5-foot inlet tubing
  • Filter wrench
  • Instructions.


Built in the USA.


Measures 18.5 inches by 16 inches by 6 inches and weighs 12.5 pounds.

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