Hydro-Logic Stealth-RO300 Reverse Osmosis System


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Power your hydroponic garden with clean water with the HydroLogic Stealth-RO300! This reverse osmosis system produces 300 gallons of ultra-pure water daily, removing 98% of contaminants for truly pure water. Its innovative design lets you choose between 1:1 or 2:1 waste-to-product ratios, saving up to 50% more water. Plus, the included Membrane Power Flush Kit keeps your system running smoothly for years. The Stealth-RO300 is the ultimate investment for serious growers.    

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Hydro-Logic Stealth-RO300 Reverse Osmosis System

​​​​​​Removes 98%+ of all contaminants in your tap water. Leading the industry in efficiency, the Stealth has a 2:1 waste-to-product water ratio. Optional 1:1 ratio flow restrictor saves 50% more wastewater. Customized for gardening and hydroponics. The Stealth RO™ 300 produces 300 GPD of ultra-pure water. Includes: 3-stage RO unit, 2 RO membranes, carbon filter, cleanable sediment filter, automatic shut-off cartridge, wall mountable metal bracket, garden hose connector, inline shut-off, 8 ft RO and drain line, 5 ft inlet line, filter wrench, and instructions. Membrane Power Flush Kit now included.

Perfect for hydroponic gardens requiring up to 300 gallons a day of pure reverse osmosis water.

  • Produces up to 300 GPD (gallons per day) of ultra-pure, low PPM water (Flow rates of RO systems are based on source water @ 65 psi/77°/500 ppm)
  • Removes up to 98%+ of all contaminants
  • 50% water savings over similar RO filters with your choice of 1:1 or 2:1 ratios
  • The #1 selling filter in gardening and hydroponics for 15+ years
  • Membrane Power Flush Kit now included

System Includes:

  • 2-RO Membranes
  • Green Coconut Carbon Filter
  • Cleanable Pleated Sediment Filter
  • 1:1 and 2:1 Ratio Flow Restrictors
  • Membrane Power Flush Kit
  • ¼” QC Ball Valve Inline Shut-Off
  • 8′ length, ⅜” white inlet tubing
  • 8′ length, ¼” drain tubing
  • 5′ length, ¼” product water tubing
  • Double Ended Wrench for Standard Filter & Membrane Housings

Unit size: 18.5 in x 16 in x 6 in and weight: 12.5 Ib.

View Hydro-Logic Stealth-RO300 Instruction Manual


Weight 12.805 lbs
Dimensions 16.2 × 6.1 × 18.8 in

Product Category

Air – Water – CO2


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