HydroLogic Stealth-RO300 Reverse Osmosis System - 300 GPD

Clean Low-PPM Water for Larger Hydroponic Gardens - 300 GPD

Tap water with high dissolved solids limits how precisely you can control a nutrient mix. The Stealth-RO300 reverse osmosis system filters source water through a sediment filter, carbon filter and RO membranes to lower total dissolved solids by up to 98%. That gives you a cleaner starting point for feed water. Output is rated at up to 300 gallons per day at 65 psi, 77° and 500 ppm source water.

At this capacity, the unit suits regular indoor growers and larger hydroponic setups that draw a lot of water each day. Smaller gardens can use it too if they want room to expand. It ships with tubing, two membranes and the tools for first setup.

Key Features & Benefits

• Up to 300 GPD output — supplies reservoirs and larger hydroponic systems without constant refilling.
• Up to 98% TDS reduction — gives you low-PPM water to build nutrient solutions from.
• 1:1 or 2:1 flow restrictors — lets you choose your ratio and save water compared with similar RO filters.
• Membrane Power Flush Kit included — helps you flush the membranes as part of routine care.
• Cleanable pleated sediment filter — can be cleaned and reused, which keeps upkeep simpler.

Who Should Use HydroLogic Stealth-RO300

Growers running hydroponic systems, larger reservoirs or multiple rooms who need a steady supply of low-PPM water. It suits both home gardeners and licensed commercial operations.

About HydroLogic Stealth-RO300

The HydroLogic Stealth-RO300 is a reverse osmosis system rated for up to 300 GPD. The kit includes 2 RO membranes, a green coconut carbon filter, a cleanable pleated sediment filter, 1:1 and 2:1 flow restrictors, a Membrane Power Flush Kit and a 1/4-in QC ball valve inline shut-off. It also comes with 8 ft of 3/4-in inlet tubing, 8 ft of 1/4-in drain tubing, 5 ft of 1/4-in product water tubing and a double-ended wrench. The unit measures 18.5 x 16 x 6 in (H x W x D) and weighs 12.5 lb.

Frequently Asked Questions

Q: How much water does it produce?
A: It produces up to 300 gallons per day. That rating is based on source water at 65 psi, 77° and 500 ppm, so your output will vary with your own water conditions.

Q: What does TDS reduction mean?
A: TDS stands for total dissolved solids, the minerals and salts in water, measured in ppm. This system lowers TDS by up to 98%.

Q: Which ratio should I choose, 1:1 or 2:1?
A: The ratio describes how much wastewater goes to drain for each unit of clean water. Choose the flow restrictor that matches your water use goals. The system is rated for 50% water savings over similar RO filters.

Q: What is included in the box?
A: You get two RO membranes, a coconut carbon filter, a pleated sediment filter, both flow restrictors, a flush kit, a shut-off valve, tubing and a wrench. You can start setup right away.

Q: How often do I replace the housings?
A: Replace the housings every 3 years. Filters and membranes follow their own schedules, so check the filter replacement guide.

Q: Is the sediment filter reusable?
A: Yes, the pleated sediment filter is cleanable. Clean it regularly as part of maintenance.