Neptune Reverse Osmosis Junior

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Neptune Reverse Osmosis Junior
Click here for instructions:

  • Inline Sediment Cartridge (5 micron)
  • Coconut Shell Activated Carbon Cartridge (1 micron)
  • 50 GPD R/O Membrane
  • UV Resistent Tubing (6 FT)
  • 3/4" Garden Hose Adapter
  • Check Valve
  • Flow Restrictor
  • Hanging Bracket
  • Maintenance Wrench

The Junior model is a portable three-stage reverse osmosis unit. It makes high quality reverse osmosis water from a water source either at home or on-the-go. Use it to top off your freshwater or saltwater aquarium, and for all other water filtration requirements.


Neptune (RO) Reverse Osmosis Filtration Systems are a unique series of professionally built water purification systems that focus on quality water production as well as user friendly operation and easy maintenance.  Built with quality parts, they are designed to last for many years, producing the same quality water as they did from day one. 

Suggested Maintenance instructions:

  • Replace Membrane every year
  • Replace Sediment Cartridge every 2,500 gallons
  • Replace Carbon Cartridge when visually expended (see clear canister)